Publications and Talks

Publications | Talks

Conformal Description of Near-Horizon Vacuum States: T. Banks, K. M. Zurek
arxiv.org/abs/2108.04806 • Phys.Lett.D 104 (2021) 126026
Frontiers of Quantum Gravity: Shared Challenges, Converging Directions: J. de Boer, B. Dittrich, A. Eichhorn, S. B. Giddings, S. Gielen et al.
arxiv.org/abs/2207.10618 • Contribution to the Proceedings of Snowmass 2021
Observational Signatures of Quantum Gravity in Interferometers: E. P. Verlinde, K. M. Zurek
arxiv.org/abs/1902.08207 • Phys.Lett.B 822 (2021) 136663
Quantum Mechanics of Gravitational Waves: M. Parikh, F. Wilczek, G. Zahariade
arxiv.org/abs/2010.08205 • Phys.Rev.Lett. 127 (2021) 8, 081602
Signatures of the Quantization of Gravity at Gravitational Wave Detectors: M. Parikh, F. Wilczek, G. Zahariade
arxiv.org/abs/2010.08208 • Phys.Rev.D 104 (2021) 4, 046021
The Stringy Origins of Galileons and their Novel Limit: D. Easson, T. Manton, M. Parikh, A. Svesko
arxiv.org/abs/2012.12277 • JCAP 05 (2021) 031
The Weak Lensing Radial Acceleration Relation: Constraining Modified Gravity and Cold Dark Matter Theories with KiDS-1000: M. M. Brouwer, et al.
arxiv.org/abs/2106.11677 • Astron.Astrophys. 650 (2021) A113
An Entropic Lens on Stabilizer States: C. A. Keeler, W. Munizzi, J. Pollack
arxiv.org/abs/2204.07593 • Phys.Rev.A 106 (2022) 6, 062418
A Universe Field Theory for JT Gravity: B. Post, J. van der Heijden, E. Verlinde
arxiv.org/abs/2201.08859 • JHEP 05 (2022) 118
Black Hole Entropy and Long Strings: E. Verlinde, M. R. Visser
arxiv.org/abs/2206.03161 • Int.J.Mod.Phys.D 31 (2022) 14, 2242006
Modular Fluctuations from Shockwave Geometries: E. Verlinde, K. M. Zurek
arxiv.org/abs/2208.01059 • Phys.Rev.D 106 (2022) 106011

A particle generating a gravitational shockwave is depicted in red. When a probe particle crosses this shockwave, it experiences a null shift related to the shockwave momentum. The shockwave in turn experiences a shift due to the momentum of the probe. Such shockwaves may arise from vacuum fluctuations of quantum gravity, potentially leading to observable signals in interferometers.
No Page Curves for the de Sitter Horizon: J. Kames-King, E. M. H. Verheijden, E. Verlinde
arxiv.org/abs/2108.09318 • JHEP 03 (2022) 040
On the Causality Paradox and the Karch-Randall Braneworld as an EFT: D. Neuenfeld, M. Srivastava
arxiv.org/abs/2307.10392 • JHEP 10 (2023) 164
On the Questions of Asymptotic Recoverability of Information and Subsystems in Quantum Gravity: S. B. Giddings
arxiv.org/abs/2112.03207 • JHEP 08 (2022) 227
On Vacuum Fluctuations in Quantum Gravity and Interferometer Arm Fluctuations: K. M. Zurek
arxiv.org/abs/2012.05870 • Phys.Lett.B 826 (2022) 136910
Perturbative Quantum Evolution of the Gravitational State and Dressing in General Backgrounds: S. B. Giddings, J. Perkins
arxiv.org/abs/2209.06836
Quantum Evolution of the Hawking State for Black Holes: S. B. Giddings, J. Perkins
arxiv.org/abs/2204.13126 • Phys.Rev.D 106 (2022) 6, 065011
Quasi-local energy and microcanonical entropy in two-dimensional nearly de Sitter gravity: A. Svesko, E. M. H. Verheijden, E. Verlinde, M. R. Visser
arxiv.org/abs/2203.00700 • JHEP 08 (2022) 075
Snowmass 2021 White Paper: Observational Signatures of Quantum Gravity: K. M. Zurek
arxiv.org/abs/2205.01799
The Deepest Problem: Some Perspectives on Quantum Gravity: S. B. Giddings
arxiv.org/abs/2202.08292 • Contribution the Proceedings of Snowmass 2021
The Timbre of Hawking Gravitons: An Effective Description of Energy Transport from Holography: T. He, R. Loganayagam, M. Rangamani, A. Sivakumar, J. Virrueta
arxiv.org/abs/2202.04079 • JHEP 2209 092 (2022)
A "Black Hole Theorem," and Its Implications: S. B. Giddings
arxiv.org/abs/2110.10690 • Class.Quant.Grav. 40 (2023) 8, 085002
A Gap Between Holographic and Quantum Mechanical Extreme Rays of the Subadditivity Cone: T. He, V. E. Hubeny, M. Rota
arxiv.org/abs/2307.10137 • to appear in Phys.Rev.D
A Generalized Selberg Zeta Function for Flat Space Cosmologies: A. Bagchi, C. A. Keeler, V. Martin, R. Poddar
arxiv.org/abs/2312.06770
Aligned Fields Double Copy to Kerr-NUT-(A)dS: S. Chawla, C. A. Keeler
arxiv.org/abs/2209.09275 • JHEP 04 (2023) 005
An Effective Description of Charge Diffusion and Energy Transport in a Charged Plasma from Holography: T. He, R. Loganayagam, M. Rangamani, J. Virrueta
arxiv.org/abs/2205.03415 • JHEP 03 (2023) 161
An Outsider's Perspective on Information Recovery in de Sitter Space: L. Aalsma, S. E. Aguilar-Gutierrez, W. Sybesma
arxiv.org/abs/2210.12176 • JHEP 01 (2023), 129
Astronomical Image Blurring from Transversely Correlated Quantum Gravity Fluctuations: V. S. H. Lee, K. M. Zurek, Y. Chen
arxiv.org/abs/2312.06757
Asymptotic Structure of Higher Dimensional Yang-Mills Theory: T. He, P. Mitra
arxiv.org/abs/2306.04571
Beyond the Holographic Entropy Cone via Cycle Flows: T. He, S. Hernández-Cuenca, C. A. Keeler
arxiv.org/abs/2312.10137
Black Hole Horizons from the Double Copy: S. Chawla, C. A. Keeler
arxiv.org/abs/2306.02417 • Class.Quant.Grav. 40 (2023) 22, 225004
Bounding Entanglement Entropy with Contracted Graphs: C. A. Keeler, W. Munizzi, J. Pollack
arxiv.org/abs/2310.19874
Celestial Sector in CFT: Conformally Soft Symmetries: L. P. de Gioia, A. Raclariu
arxiv.org/abs/2303.10037
Changing States in Holography: From Modular Berry Curvature to the Bulk Symplectic Form: B. Czech, J. de Boer, R. Espindola, B. Najian, J. van der Heijden, C. Zukowski
arxiv.org/abs/2305.16384 • Phys.Rev.D 108 (2023) 6, 066003
Clifford Orbits from Cayley Graph Quotients: C. A. Keeler, W. Munizzi, J. Pollack
arxiv.org/abs/2306.01043
Comparing Models for a Unitary Black Hole S-Matrix: S. B. Giddings
arxiv.org/abs/2212.14551

The information paradox of black holes suggests a need to modify local quantum field theory; allowing for interactions to transfer quantum information from the black hole to the external state. Gravitational wave (GW) scattering on a quantum black hole (QBH) would be modified by such interactions. What are the minimal requirements to ensure unitary evolution and could that imply an observable signature in gravitational wave observations?
Coupling Fields to 3D Quantum Gravity via Chern-Simons Theory: A. Castro, I. Coman, J. R. Fliss, C. Zukowski
arxiv.org/abs/2304.02668 • Phys.Rev.Lett 131 (2023)
Entanglement, Soft Modes, and Celestial Holography: H. Z. Chen, R. C. Myers, A. Raclariu
arxiv.org/abs/2308.12341
Extremal Black Hole Decay in de Sitter Space: L. Aalsma, J. P. van der Schaar, M. R. Visser
arxiv.org/abs/2311.13742
Graviton Noise Correlation in Nearby Detectors: M. Parikh, F. Setti
arxiv.org/abs/2312.17335
Inner Bounding the Quantum Entropy Cone with Subadditivity and Subsystem Coarse-Grainings: T. He, V. E. Hubeny, M. Rota
arxiv.org/abs/2312.04074
Interferometer Response to Geontropic Fluctuations: Y. Chen, V. S. Lee, D. Li, K. M. Zurek
arxiv.org/abs/2209.07543 • Phys.Rev.D 107 (2023) 024002
Keeping Matter in the Loop in dS3 Quantum Gravity: A. Castro, I. Coman, J. R. Fliss, C. Zukowski
arxiv.org/abs/2302.12281 • JHEP 07 (2023) 120
Late-Time Correlators and Complex Geodesics in de Sitter Space: L. Aalsma, M. M. Faruk, J. P. van der Schaar, M. R. Visser, J. de Witte
arxiv.org/abs/2212.01394 • SciPost Phys. 15 (2023), 031
Near-Horizon Quantum Dynamics of 4-d Einstein Gravity from 2-d JT Gravity: S. Gukov, V. S. Lee, K. M. Zurek
arxiv.org/abs/2205.02233 • Phys.Rev.D 107 (2023) 016004
New Boundary Conditions for Extremal Black Holes: S. Detournay, T. Smoes, R. Wutte
arxiv.org/abs/2312.08353
Non-Minimal Coupling, Negative Null Energy, and Effective Field Theory: J. R. Fliss, B. Freivogel, E. Kontou, D. P. Santos
arxiv.org/abs/2309.10848
On Entropy Growth in Perturbative Scattering: C. Cheung, T. He, A. Sivaramakrishnan
arxiv.org/abs/2304.13052 • Phys.Rev.D 108 (2023) 045013
On Infinite Symmetry Algebras in Yang-Mills Theory: L. Freidel, D. Pranzetti, A. Raclariu
arxiv.org/abs/2306.02373 • JHEP 12 (2023) 009
On the Relation Between the Subadditivity Cone and the Quantum Entropy Cone: T. He, V. E. Hubeny, M. Rota
arxiv.org/abs/2211.11858 • JHEP 08 (2023) 018
Quantum Chaos in 2D Gravity: A. Altland, B. Post, J. Sonner, J. van der Heijden, E. Verlinde
arxiv.org/abs/2204.07583 • SciPost Phys. 15 (2023) 2, 064
Quantum-Gravitational Null Raychaudhuri Equation: S.-E. Bak, M. Parikh, S. Sarkar, F. Setti
arxiv.org/abs/2312.17214
Quantum Gravity Background in Next-Generation Gravitational Wave Detectors: M. W. Bub, Y, Chen, Y. Du, D. Li, Y. Zhang, K. M. Zurek
arxiv.org/abs/2305.11224 • Phys.Rev.D 108 (2023) 064038
Quantum Gravity Corrections to the Fall of the Apple: S. Chawla, M. Parikh
arxiv.org/abs/2112.14730 • Phys.Rev.D 107 (2023) 066024
Quantum Gravity Fluctuations in the Timelike Raychaudhuri Equation: S.-E. Bak, M. Parikh, S. Sarkar, F. Setti
arxiv.org/abs/2212.14010 • JHEP 05 (2023) 125
Quasinormal Modes from Penrose Limits: K. Fransen
arxiv.org/abs/2301.06999 • Class.Quant.Grav. 40 (2023) 20, 205004
Quasinormal Modes of Rotating Black Holes in Higher-Derivative Gravity: P. A. Cano, K. Fransen, T. Hertog, S. Maenaut
arxiv.org/abs/2307.07431 • Phys.Rev.D 108 (2023) 124032
Stochastic Description of Near-Horizon Fluctuations in Rindler-AdS: Y. Zhang, K. M. Zurek
arxiv.org/abs/2304.12349 • Phys.Rev.D 108 (2023) 066002
The Universal Teukolsky Equations and Black Hole Perturbations in Higher-Derivative Gravity: P. A. Cano, K. Fransen, T. Hertog, S. Maenaut
arxiv.org/abs/2304.02663 • Phys.Rev.D 108 (2023) 024040
Tunneling to Holographic Traversable Wormholes: S. Bintanja, B. Freivogel, A. Rolph
arxiv.org/abs/2308.00871

Traversable wormholes are impossible in classical gravity, but allowed in quantum gravity. Freivogel and collaborators constructed a traversable wormhole in asymptotically AdS spacetime, which could allow for tests of quantum gravity on quantum computers via the AdS/CFT correspondence.
A Diamond of Infrared Equivalences in Abelian Gauge Theories: T. He, P. Mitra, K. M. Zurek
arxiv.org/abs/2405.12303
A Discrete Basis for Celestial Holography: L. Freidel, D. Pranzetti and A. Raclariu
arxiv.org/abs/2212.12469
An On-Shell Derivation of the Soft Effective Action in Abelian Gauge Theories: T. He, P. Mitra, A. Sivaramakrishnan, K. M. Zurek
arxiv.org/abs/2403.14502
Decoherence by Warm Horizons: J. Wilson-Gerow, A. Dugad, Y. Chen
arxiv.org/abs/2405.00804
Entanglement, Soft Modes, and Celestial CFT: H. Z. Chen, R. C. Myers, A. Raclariu
arxiv.org/abs/2403.13913
Estimating Quantum Gravity Corrections to Correlations Near Black Holes: B. Freivogel, T. Li
arxiv.org/abs/2405.17570
From Shockwaves to the Gravitational Memory Effect: T. He, A. Raclariu, K. M. Zurek
arxiv.org/abs/2305.14411 • JHEP 01 (2024) 006
Gluing-at-infinity of Two-dimensional Asymptotically Locally Hyperbolic Manifolds: P. T. Chruściel, R. Wutte
arxiv.org/abs/2401.04048
Gravitational Wave Signatures of Departures from Classical Black Hole Scattering: K. Fransen, S. Giddings
arxiv.org/abs/2405.05970
On Type-II Spacetimes and the Double Copy for Fluids Metrics: C. A. Keeler, N. Monga
arxiv.org/abs/2404.03195
Photon Counting Interferometry to Detect Geontropic Space-Time Fluctuations with GQuEST: S. Vermeulen, T. Cullen, D. Grass, I. A. O. MacMillan, A. J. Ramirez et al.
arxiv.org/abs/2404.07524
Rindler Fluids from Gravitational Shockwaves: S.-E. Bak, C. A. Keeler, Y. Zhang, K. M. Zurek
arxiv.org/abs/2403.18013 • JHEP 05 (2024) 331
Spectroscopy of Bumpy BHs: Non-Rotating Case: C. Weller, D. Li, Y. Chen
arxiv.org/abs/2405.20934
Dark Matter Candidates of a Very Low Mass: K.M. Zurek
arxiv.org/abs/2401.03025
Stochastic waveform estimation at the fundamental quantum limit: J.W. Gardner, T. Gefen, S.A. Haine, J.J. Hope, J. Preskill, et al.
arxiv.org/abs/2404.13867
Gravitational algebras and the generalized second law: T. Faulkner, A.J. Speranza
arxiv.org/abs/2405.00847
Quantum Extremal Modular Curvature: Modular Transport with Islands: L. Aalsma, C. Keeler, C. Zukowski
arxiv.org/abs/2406.05176
The Penrose limit of the Weyl double copy: S. Chawla, K. Fransen, C. Keeler
arxiv.org/abs/2406.14601
The curvature dependence of gravitational-wave tests of General Relativity: K. Chatziioannou, Y. Chen, M. Isi, L. Lehner, E. Payne, et al.
arxiv.org/abs/2407.07043
An Operator Algebraic Approach To Black Hole Information: J. van der Heijden, E. Verlinde
arxiv.org/abs/2408.00071
An Infrared On-Shell Action and its Implications for Soft Charge Fluctuations in Asymptotically Flat Spacetimes: T. He, A.-M. Raclariu, K.M. Zurek
arxiv.org/abs/2408.01485
Proper Time Observables of General Gravitational Perturbations in Laser Interferometry-based Gravitational Wave Detectors: V.S. Lee, K.M. Zurek
arxiv.org/abs/2408.03363
Tolerance to Astrophysical Model Uncertainty in Dark Siren Hubble Measurement with Third-generation Gravitational-wave Detectors: Y. Chen, Y. Wang
arxiv.org/abs/2408.10382
Quantum Mechanics of a Spherically Symmetric Causal Diamond in Minkowski Spacetime: M.W. Bub, T. He, P. Mitra, Y. Zhang, K.M. Zurek
arxiv.org/abs/2408.11094
Signatures of Linearized Gravity in Atom Interferometers: a Simplified Computational Framework: L. Badurina, Y. Du, V.S. Lee, Y. Wang, K.M. Zurek
arxiv.org/abs/2409.03828
Love symmetry in higher-dimensional rotating black hole spacetimes: F. Gray, C. Keeler, D. Kubiznak, V. Martin
arxiv.org/abs/2409.05964
Aspects of Warped AdS₃ geometries: P. Bieliavsky, P. Spindel, R. Wutte
arxiv.org/abs/2410.09688
Semiclassical gravity phenomenology under the causal-conditional quantum measurement prescription II: Heisenberg picture and apparent optical entanglement: Y. Chen, Y. Liu, Y. Ma, W. Zhong
arxiv.org/abs/2411.05578
Cauchy problems for Einstein equations in three-dimensional spacetimes: P.T. Chruściel, W. Cong, T. Quéau, R. Wutte
arxiv.org/abs/2411.07423
Gravitational-wave signatures of non-violent non-locality: Y. Chen, B.C. Seymour
arxiv.org/abs/2411.13714
How negative can null energy be in large N CFTs?: J.R. Fliss, B. Freivogel, E.-A. Kontou, D.P. Santos
arxiv.org/abs/2412.10618
Algorithmic construction of SSA-compatible extreme rays of the subadditivity cone and the N=6 solution: T. He, V.E. Hubeny, M. Rota
arxiv.org/abs/2412.15364
The unitarity crisis, nonviolent unitarization, and implications for quantum spacetime: S.B. Giddings
arxiv.org/abs/2412.18650
Quantum uncertainty in the area of a black hole: M. Parikh, J. Pereira
arxiv.org/abs/2412.21160
Holographic observers for time-band algebras: K. Jensen, S. Raju, A.J. Speranza
arxiv.org/abs/2412.21185
Lindblad estimation with fast and precise quantum control: Y. Chen, J.W. Gardner, T. Gefen, S.A. Haine, J.J. Hope
arxiv.org/abs/2501.03364
On the positivity of light-ray operators: B. Freivogel, H. Stoffels
arxiv.org/abs/2501.08386
Characterizing stationary optomechanical entanglement in the presence of non-Markovian noise: M. Aspelmeyer, Y. Chen, S. Direkci, C. Gut, K. Winkler
arxiv.org/abs/2502.02838
Universality of stationary entanglement in an optomechanical system driven by non-Markovian noise and squeezed light: M. Aspelmeyer, Y. Chen, S. Direkci, C. Gut, K. Winkler
arxiv.org/abs/2502.02979
Modular Fluctuations in Cosmology: L. Aalsma, S.-E. Bak
arxiv.org/abs/2503.04886
The Role of Quantum Measurements when Testing the Quantum Nature of Gravity: Y. Chen, Y. Kaku, Y. Liu, Y. Ma, D. Miki
arxiv.org/abs/2503.11882
Perturbations of spinning black holes in dynamical Chern-Simons gravity: Slow rotation quasinormal modes: Y. Chen, D. Li, P. Wagle, N. Yunes
arxiv.org/abs/2503.15606
Expanding on the double copy in null Fermi coordinates: S. Chawla, K. Fransen, C. Keeler
arxiv.org/abs/2504.07224
An intrinsic cosmological observer: A.J. Speranza
arxiv.org/abs/2504.07630
Quantum Area Fluctuations from Gravitational Phase Space: L. Ciambelli, T. He, K.M. Zurek
arxiv.org/abs/2504.12282
Teleportation-based Speed Meter for Precision Measurement: Y. Chen, J.W. Gardner, Y. Nishino, K. Somiya
arxiv.org/abs/2504.18111
Detecting gravitational signatures of dark matter with atom gradiometers: L. Badurina, Y. Du, V.S. Lee, Y. Wang, K.M. Zurek
arxiv.org/abs/2505.00781
Quantum Back Action Evasion with Reservoir Engineering: Y. Chen, J.W. Gardner, Y. Nishino, K. Somiya
arxiv.org/abs/2505.01013
Quantum gravity observables: observation, algebras, and mathematical structure: S.B. Giddings
arxiv.org/abs/2505.22708
Physics beyond the Standard Model with the DSA-2000: K.V. Berghaus, Y. Du, V.S. Lee, A. Prabhu, et al.
arxiv.org/abs/2505.23892
The ringdown of a black hole surrounded by a thin shell of matter: Y. Chen, A. Laeuger, D. Li, C. Weller
arxiv.org/abs/2506.00367
Photon rings in a holographic toy model: S. Detournay, S. Kanuri, A. Lupsasca, P. Spindel, et al.
arxiv.org/abs/2506.07989
Prospects for High-Frequency Gravitational-Wave Detection with GEO600: Y. Chen, C.M. Jungkind, A. Laeuger, B.C. Seymour
arxiv.org/abs/2506.08315
Testing the quantum nature of gravity through interferometry: Y. Chen, Y. Liu, Y. Ma, K. Somiya
arxiv.org/abs/2506.13085
Bayesian frequency estimation at the fundamental quantum limit: S. Direkci, J.W. Gardner, T. Gefen, E. Payne, S.M. Vermeulen, et al.
arxiv.org/abs/2507.02811
Challenges for describing unitary evolution in nontrivial geometries: pictures and representations: S.B. Giddings, J. Perkins
arxiv.org/abs/2507.13351
Thermodynamics of a Spherically Symmetric Causal Diamond in Minkowski Spacetime: K. Fransen, T. He, K.M. Zurek
arxiv.org/abs/2507.22977
Hyperbolic Mass in 2+1 Dimensions: R. Wutte
arxiv.org/abs/2509.00994
Probing Direct Waves in Black Hole Ringdowns: Y. Chen, S. Ma, N. Oshita, H. Yang
arxiv.org/abs/2509.09165
An effective density matrix for vacua in asymptotically flat gravity: T. He, P. Mitra, K.M. Zurek
arxiv.org/abs/2509.13401
Simultaneous Speedmeter and Position-Meter Response in a Single Tabletop Interferometer: Y. Chen, M. Korobko, X. Li, Y. Ma, T. Sobottke, et al.
arxiv.org/abs/2509.15285
The Many Faces of Non-invertible Symmetries: S. Ali Ahmad, M.S. Klinger, Y. Wang
arxiv.org/abs/2509.18072
GW250114 reveals black hole horizon signatures: Y. Chen, N. Lu, S. Ma, O.J. Piccinni, L. Sun
arxiv.org/abs/2510.01001
Evolving extreme mass-ratio inspirals in a perturbed Schwarzschild spacetime: P. Bourg, Y. Chen, M. LaHaye, D. Li, C. Weller, et al.
arxiv.org/abs/2510.16102
Gravitational dressing: from the crossed product to more general algebraic and mathematical structure: S.B. Giddings
arxiv.org/abs/2510.24833
Families of Hitchin Systems in Type-D: A. Balasubramanian, J. Distler, R. Donagi, C. Perez-Pardavila
arxiv.org/abs/2510.27199
Unraveling the Spectrum of the Open String: B. Bucciotti, F. Figueroa, G.L. Pimentel
arxiv.org/abs/2511.07524
Quantum Symmetry and Geometry in Double-Scaled SYK: J. van der Heijden, E. Verlinde, J. Xu
arxiv.org/abs/2511.08743
Monogamy of Mutual Information in Graph States: J. Fuentes, C. Keeler, W. Munizzi, J. Pollack
arxiv.org/abs/2511.19585
A Theory of Backgrounds and Background Independence: M. Klinger
arxiv.org/abs/2512.05043
From Asymptotically Flat Gravity to Finite Causal Diamonds: L. Ciambelli, T. He, K.M. Zurek
arxiv.org/abs/2512.09018
Squeezed States in Gravity: A. Das, M. Parikh, F. Wilczek, R. Wutte
arxiv.org/abs/2512.20601
Generalized Entropy is von Neumann Entropy II: The complete symmetry group and edge modes: M.S. Klinger, J. Kudler-Flam, G. Satishchandran
arxiv.org/abs/2601.07910
Exploring the holographic entropy cone via reinforcement learning: T. He, J. Lee, H. Ooguri
arxiv.org/abs/2601.19979
Seeing Page Curves and Islands with Blinders On: H. Geng, A. Karch, C. Perez-Pardavila, S. Raju, L. Randall, et al.
arxiv.org/abs/2602.06543
How to have your wormholes and factorize, too: M.S. Klinger
arxiv.org/abs/2602.15120
Inspiral tests of general relativity and waveform geometry: Y. Chen, J. Golomb, B.C. Seymour
arxiv.org/abs/2602.17524
The gravitational S-matrix from the path integral: asymptotic symmetries and soft theorems: J. Isen, P. Kraus, R. Monten, R.M. Myers
arxiv.org/abs/2603.17045
Towards sample-optimal learning of bosonic Gaussian quantum states: S. Chen, M. Fanizza, A. Li, Z. Mann, F.A. Mele, et al.
arxiv.org/abs/2603.18136
On the Asymptotic Causal Structure in Gravitational EFTs: B. Bucciotti, P. Creminelli, A. Longo, W.P. McBlain, E. Trincherini
arxiv.org/abs/2605.00089

"The Noise of Gravitons": M. Parikh
Columbia University, April 2021; Penn State, April 2021
"The Noise of Gravitons": M. Parikh
Witnessing Quantum Gravity in a Lab conference, São Paulo, Brazil, June 2021
"The Signal in the Noise": M. Parikh
Quantum Connections meeting, Stockholm, June 2021
"Observational Consequences of Quantum Gravity in Interferometers": K. M. Zurek
International Center for Theoretical Physics Conference on Observational Signatures of Quantum Gravity, July 2021
"Black Holes and Information - An Update": S. B. Giddings
Quantum Gravity and All of That international online seminar, Steklov Mathematical Institute, Moscow, September 2021
"Black Holes and Other Clues for Quantum Gravity": S. B. Giddings
Humboldt Kolleg on Quantum Gravity and Fundamental Interactions, Corfu Summer Institute, September 2021
"Observing Perturbative Quantum Gravity": M. Parikh
Qurios Aspen workshop, September 2021
"The Noise of Gravitons": M. Parikh
Arizona State University physics colloquium, September 2021
"Black Holes and the Structure of Quantum Gravity": S. B. Giddings
Black Holes Inside and Out Conference, October 2021
"Quantum Black Holes: Some Current Perspectives": S. B. Giddings
1^st ISQG Meeting, October 2021
"The Noise of Gravitons": M. Parikh
UC Davis physics colloquium, October 2021
"Computing Quantum Corrections to Black Holes in Semi-Classical Gravity": B. Freivogel
HoloTube seminar series, December 2021
"A Lower Bound on the Null Energy": B. Freivogel
UC Berkeley, February 2022
"Hidden Conformal Symmetries from Killing Towers": C. A. Keeler
Low-Dimensional Models of Quantum Gravity, Aspen, Colorado, February 2022
"An Effective Description of Energy Transport from Holography": T. He
Caltech, April 2022
"Observational Signatures of Quantum Gravity": K. M. Zurek
Colloquium, UCLA, April 2022
"Observational Signatures of Quantum Gravity": K. M. Zurek
International Copernicus Webinar, April 2022
"Observational Signatures of Quantum Gravity: Searching for UV Physics in the Infrared": K. M. Zurek
Rencontres de Blois, Blois, France, May 2022
"Quantum Black Holes: Crisis to Observational Prospects": S. B. Giddings
Quantum Gravity Across Approaches international seminar series, May 2022
"An Effective Description of Energy Transport from Holography": T. He
Joint BHI/CMSA Conference on Flat Holography, Harvard University, June 2022
"Computing Quantum Gravity Effects with Wormholes": B. Freivogel
Max Planck Institute, Dresden, Germany, June 2022
"How to Build a Traversable Wormhole in the Lab": B. Freivogel
Galileo Galilei Institute, Florence, Italy, June 2022
"From Shockwaves to the Gravitational Memory Effect": T. He
String Theory Seminar, Utrecht University, July 2022
“'Quantum First' Approach to Gravity and Black Holes": S. B. Giddings
Quantum Mechanics and Gravity: Marrying Theory and Experiment conference, Quantum Gravity Society, August 2022, Vancouver
"Three Ways to Build Spacetime": C. A. Keeler
ASU Colloquium, August 2022
"Asymptotic Symmetries and Celestial Holography": A. Raclariu
Lecture series for the Saalburg Summer School, Germany, September 2022
"Swampy Perspectives on de Sitter Quantum Gravity": L. Aalsma
Back to the Swamp, Madrid, September 2022
"Exploring Black Holes with Gravitational Waves": K. Fransen
UCSB, October 2022
"Infinite Towers of Soft Operators and Celestial CFT, Quantum Gravity": A. Raclariu
Around the Corner, Perimeter Institute, October 2022
"On Detecting Equatorial Symmetry Breaking with LISA": K. Fransen
Caltech, October 2022
"Space-Time and the Quantum": M. Parikh
Indian Institute of Technology colloquium, October 2022
"Bounds on Gravitational Brane Couplings and Tomography in AdS3 Black Hole Microstates": D. Neuenfeld
Quantum Gravity Seminar, Perimeter Institute, November 2022
"Celestial Amplitudes from Flat Space Limit of AdS-Witten Diagrams": A. Raclariu
Kings College London Theoretical Physics Seminar, November 2022
"Celestial Amplitudes from Flat Space Limit of AdS-Witten Diagrams": A. Raclariu
NORDITA Energy Theory Seminar, November 2022
"Celestial Amplitudes from Flat Space Limit of AdS-Witten Diagrams": A. Raclariu
Utah State University High Energy Theory Seminar (virtual), November 2022
"From AdS to Celestial Holography": A. Raclariu
Dutch National Seminar in High Energy Physics, UvA, November 2022
"Hidden Conformal Symmetries from Killing Towers": C. A. Keeler
31^st Nordic Network Meeting on Strings, Fields, and Branes, Copenhagen, November 2022
"Holographic Approaches to Gravitational Scattering": A. Raclariu
Wurzburg University, Physics Colloquium, November 2022
"Quantum Gravity at Gravitational Wave Detectors": M. Parikh
Gravity and Black Holes conference, Gandhinagar, India, November 2022
"Celestial Amplitudes from Flat Space Limit of AdS-Witten Diagrams": A. Raclariu
NYU High Energy Theory Seminar, December 2022
"Observational Signatures of Quantum Gravity": K. M. Zurek
Colloquium, University of Utah, January 2023
"Observing Quantum Gravity": M. Parikh
Qurios Tempe workshop, January 2023
"A Path Towards Flat Space Holography": A. Raclariu
University of Amsterdam, String Seminar, February 2023
"Jittering Geodesics": M. Parikh
Quantum Gravity: Testable or Forever Out of Reach? Conference, Tempe, Arizona, February 2023
"Quantum Gravity, Black Holes, and Possible Observational Tests": S. B. Giddings
Quantum Gravity: Testable or Forever Out of Reach? Conference, Arizona State University, Phoenix, February 2023
"Quasinormal Modes from Penrose Limits": K. Fransen
Harvard CMSA, February 2023
"A Discrete Basis for Celestial Holography": A. Raclariu
IIT Madras, Dual Mystery Channel of Gauge Theories and Gravity, March 2023
"Celestial Sector in CFT and Conformally Soft Symmetries": A. Raclariu
Quantum Gravity, Holography and Quantum Information, Wurzburg University, March 2023
"Complex Geodesics in de Sitter Space": L. Aalsma
UC Berkeley, March 2023
"Complex Geodesics in de Sitter Space": L. Aalsma
Southwest Strings, March 2023
"Focusing Bounds for CFT Correlators and the S-Matrix": T. He
Theorerical Elementary Particle Seminar, UCLA, March 2023
"Sharpening Weak Gravity Bounds with Charged Superradiance": L. Aalsma
Southwest Strings, March 2023
"Spacetime Fluctuations in Quantum Gravity and the Experiment GQuEST": K. M. Zurek
Plenary talk, Aspen Winter Conference on High Energy Physics, March 2023
"Wilson Loops and de Sitter Quantum Gravity": C. Zukowski
Southwest Strings, University of Arizona, Tucson, March 2023
"A Discrete Basis for Celestial Holography": A. Raclariu
NWO Conference, Velthoven, April 2023
"Entanglement and Islands in de Sitter JT Gravity": L. Aalsma
Quantum de Sitter Universe, Cambridge, April 2023
"Three Ways to Build Spacetime": C. A. Keeler
UIUC Colloquium, April 2023
"From Shockwaves to the Gravitational Memory Effect": T. He
High Energy Theory Informal Meeting, Caltech, May 2023
"On Entropy Growth in Perturbative Scattering": T. He
4D Seminar, UC Berkeley, May 2023
"Progress in Flat Space Holography": A. Raclariu
All Lambdas Workshop, Prague, May 2023
"Quantum Gravity, Black Holes, and Possible Observational Tests": S. B. Giddings
Modified Gravity Workshop, UIUC, May 2023
"An Operator Algebraic Approach to Black Hole Evaporation": E. Verlinde
Conference on Black Hole Microstructure, Saclay, June 2023
"An Update on Emergent Gravity and the Dark Universe": E. Verlinde
"40 years of MOND" conference, St. Andrew’s, UK, June 2023
"Celestial Sector in CFT and Conformally Soft Symmetries": A. Raclariu
Heidelberg University, June 2023
"Classical Double Copy: Solutions, Scattering, and Horizons": C. A. Keeler
Amplifying Gravity at All Scales, Stockholm, June 2023
"How Much Does a Black Hole Know (That It Won't Tell Us)?": C. A. Keeler
"Science on Tap" public science series in Tempe, Arizona, June 2023
"On Entropy Growth in Perturbative Scattering": T. He
Higgs Centre Amplitudes Meeting, University of Edinburgh, June 2023
"State-Changing Modular Berry Phases": C. Zukowski
Quantum Information Theory in Quantum Field Theory and Cosmology, Banff International Research Station (BIRS), Banff, Canada, June 2023
"Wilson Loops and de Sitter Quantum Gravity": C. Zukowski
Gravity Sagas Workshop, University of Iceland, Reykjavik, June 2023
"Classical Double Copy: Solutions, Scattering, and Horizons": C. A. Keeler
QuRIOS Collaboration Workshop, Amsterdam, July 2023
"Comments on the Causal Structure of Double Holography": D. Neuenfeld
String Theory Seminar, University of Southhampton, July 2023
Lectures on “Quantum Gravity and Operator Algebras”: E. Verlinde
Summer School on Advances in Quantum Fields, Gravity and String Theory, Vietnam, July 2023
"New Approaches in Flat Space Holography and Observational Signatures": K. M. Zurek
Quantum Gravity 2023, Nijmegen, Netherlands, July 2023
"Progress in Flat Space Holography": A. Raclariu
From Amplitudes to Gravitational Waves, NORDITA, July 2023
"Quantum Gravity, Black Holes, and Possible Observational Tests": S. B. Giddings
University of Amsterdam, July 2023
"Superluminal Signalling in Double Holography": D. Neuenfeld
Gravity, Strings and Fields: A conference in honour of Gordon Semenoff, University of Montreal, July 2023
"The Noise of Gravitons": M. Parikh
Quantum Gravity 2023 Nijmegen, Netherlands, July 2023
"Entanglement, Soft Modes and Celestial CFT": A. Raclariu
Utrecht University, September 2023
"Asymptotic Structure of Higher Dimensional Yang-Mills Theory": T. He
Kickoff Workshop: Simons Collaboration on Celestial Holography, Harvard University, October 2023
"Consistency of Double Holography from the Bottom Up": D. Neuenfeld
ULB, VUB, Gent Joint Seminar, Université Libre de Bruxelles, October 2023
"Entanglement, Soft Modes and Celestial CFT": A. Raclariu
3rd Carroll Workshop, Thessaloniki, October 2023
"Physics of Asymptotic Safety?" (presentation/panel discussion): S. B. Giddings
Quantum Spacetime and the Renormalization Group, Sardinia, October 2023
"Progress in Flat Space Holography": A. Raclariu
ICTP Workshop on String Theory, Holography, and Black Holes, October 2023
"Entanglement, Soft Modes and Celestial CFT": A. Raclariu
Trinity College Dublin, November 2023
"Entanglement, Soft Modes and Celestial CFT": A. Raclariu
ULB Joint Seminar, November 2023
"Entropies for Stabilizer States and Beyond": C. A. Keeler
Brandeis research seminar, November 2023
"Hyperbolic Mass in 2+1 Dimensions": R. Wutte
Cosmology Seminar, Arizona State University, November 2023
"Quantum Information and Materials for Dark Matter Detection": K. M. Zurek
University of Wisconsin-Madison, November 2023
"Quasinormal Modes from Penrose Limits": K. Fransen
Arizona State University, November 2023
"Asymptotic Symmetries and Celestial Holography": A. Raclariu
Lecture series for the Kavli Asian Winter School, Kyoto, December 2023
"Infinite Symmetry Algebras from Einstein's Equations": A. Raclariu
Radboud University, December 2023
"On Entropy Growth in Perturbative Scattering": T. He
High Energy Theory Seminar, University of Michigan, December 2023
"Free-Falling in Quantum Spacetime": M. Parikh
10^th International Conference on Gravitation and Cosmology, Guwahati, India, December 2023
"Higher Spin Symmetry and Celestial Holography": A. Raclariu
IFIN Bucharest, January 2024
"Consistency of Double Holography from the Bottom Up": D. Neuenfeld
Seminar talk, University of Cologne, February 2024
"Hyperbolic Mass in 2 + 1 Dimensions": R. Wutte
40^th Jim Isenberg Pacific Coast Gravity Meeting, Santa Barbara, March 2024
"Operator Algebras and the Information Paradox": E. Verlinde
"Gravity and the Quantum World" Conference, Oxford University, UK, March 2024
"Hyperbolic Mass in 2 + 1 Dimensions": R. Wutte
Carrollian Physics and Holography, Erwin Schroedinger Institute, Vienna, Austria, April 2024
Ask a Caltech Expert: Kathryn Zurek and Rana Adhikari on Quantum Gravity
Temple He
Seminars: Stanford University, LITP High Energy Seminar, May 2026; University of California, San Diego, Particle Physics Seminar, May 2026; Purdue University, Particle Physics Seminar, April 2026; University of Southern California, High Energy Theory Seminar, February 2026; Perimeter Institute, Quantum Gravity Seminar, November 2025; University of Edinburgh, Edinburgh Mathematical Physics Group Seminar, June 2025; University of Amsterdam, String Seminar, June 2025; California Institute of Technology, High Energy Theory Informal Meeting, May 2025; Simons Celestial Holography Collaboration, Simons Celestial Holography Seminar (Zoom), May 2025; Carnegie Mellon University, High Energy Theory Seminar, March 2025; Korea Institute for Advanced Study, High Energy Theory Seminar, December 2024; Korea Advanced Institute of Science and Technology, High Energy Theory Seminar, December 2024; Arizona State University, Cosmology Seminar, November 2024; Perimeter Institute, Quantum Fields and Strings Seminar, October 2024; Perimeter Institute, Quantum Gravity Seminar, September 2024; Simons Celestial Holography Collaboration, Simons Celestial Holography Seminar (Zoom), April 2024; Rutgers University, High Energy Theory Seminar, April 2024; University of Southern California, High Energy Theory Seminar, April 2024
Conferences: Simons Collaboration on Celestial Holography Satellite Meeting 2026, New York, NY, April 2026; APS Global Physics Summit 2026 (Invited Session: Quantum Information Theory and Complexity in Gravity), Denver, CO, March 2026; Harvard Celestial Holography Workshop 2026, February 2026
Cynthia Keeler
Colloquia
"Entropic (Spacetime) Structure": Utrecht, September 2024
Nectiny Castle, Czech Republic, October 2024
Seminars
"Entropic (Spacetime) Structure": Syracuse, UPenn, Penn State GAPP Seminar, April 2025
UBC, March 2025
Bristol, Cambridge DAMPT, February 2025
Jagiellonian University (Krakow), Holography@D-ITP (Amsterdam), October 2024
UCLA, November 2024
"Classical Double Copy: Solutions, Horizons, and Penrose Limits": Texas A&M, January 2026
Edinburgh, Durham, Southampton, Queen Mary University London, February 2025
King's College London, January 2025
Amsterdam, September 2024
Utrecht, Charles University Prague, CEICO Prague, October 2024
Caltech, USC, November 2024
Invited Conference Talks
"Classical Double Copy: Horizons, Penrose Limits, and Quasinormal Modes": APS Global Physics Meeting, Denver, March 2026
"Can we do particle physics on backgrounds with a position-space classical double copy?": “What is Particle Theory?”, KITP Santa Barbara, March 2025
"Shockwaves in Fluid-Gravity Duality": UIUC Workshop on EFTs, Gravity, and Fluid Dynamics, December 2024
"Drawing Graphs is Fun: Cycle Flows to Discretize Quantum Space": Aspen Workshop on Black Hole Entropy, June 2024
Lars Aalsma: Theory Seminar, University of Minnesota Twin Cities, December 2025; Physics Seminar, University of Minnesota Duluth, November 2025; Theory Seminar, University of Wisconsin–Madison, October 2025; Quantum Gravity Workshop, Duluth, June 2025; Southwest Strings, Logan Utah, April 2025; Quantum Horizons Alberta Seminar, University of Lethbridge, October 2024; Cosmology Seminar, Arizona State University, October 2024
Antony Speranza
"Algebraic observers and nonequilibrium backgrounds": Observers, Wormholes, and Complex Saddles in Cosmology, EPFL Lausanne, May 2026
"An intrinsic cosmological observer": OIST QAST Seminar, February 2026
Radboud University, November 2025
ICTP Trieste Conference on Quantum Gravity in de Sitter, October 2025
QuRIOS Collaboration Meeting UCSB, September 2025
Benasque Workshop, July 2025
Peyresq Physics Meeting, June 2025
Oxford Quantum Gravity Seminar, May 2025
Joint Belgian Seminar in Theoretical and Mathematical Physics, May 2025
Utrecht String Theory Seminar, April 2025
DIAS Theoretical Physics Seminar, April 2025
Les Diablerets Statistical Mechanics Conference, February 2025
"Gravitational algebras and the generalized second law": DAMTP Cambridge, November 2024
IAS Tsinghua, October 2024
"Entropy in gravitational von Neumann algebras": King's College London, November 2024
SIMIS Physical Math Seminar, October 2024
OIST Quantum Extreme Universe Conference, October 2024
Kavli IPMU String Theory Seminar, October 2024
University of Geneva, September 2024
Bruno Bucciotti
"Uniform approximations for quasi-normal modes": LAPTH Annecy Seminar, January 2024
"Black Holes as Probes for Ultralight Dark Matter": University of Pennsylvania, November 2024
Columbia University, November 2024
"The Quadratic Quasi-Normal Modes of a Schwarzschild Black Hole": NYU, November 2024
Johns Hopkins University, November 2024
KICP Chicago, November 2024
"Perturbation methods and Borel summation": Yukawa Institute Kyoto, November 2025
Madhur Mehta
"Extremely Compact Objects and their potential observational signatures": KITP High Energy Physics Lunch Seminar, October 2025
"Universality of black hole thermodynamics": QuRIOS Collaboration Meeting, September 2025
David DeMartini Poster Competition (Ohio State), May 2024
Hayes Forum (Ohio State), March 2024
"What are fuzzballs/ECOs?": TASI Summer School, June 2025
"Universal thermodynamics of extremely compact objects": Strings 2024 Poster, June 2024
APS Eastern Great Lakes Section, April 2024
Marc Klinger
"How to have your wormholes and factorize, too": University of Illinois Urbana–Champaign, April 2026
Purdue University, April 2026
University of British Columbia, March 2026
"Generalized Entropy is von Neumann Entropy: The complete symmetry group and edge modes": Stanford University, April 2026
"A Theory of Backgrounds and Background Independence": Perimeter Institute, January 2026
"Quantizing the Area: Geometry from Conditional Probability": Caltech High Energy Theory Seminar, April 2025
"Phase Spaces and Operator Algebras for Subregions in Gauge Theory and Quantum Gravity": Perimeter Institute, December 2024
"Extended Phase Spaces, Crossed Products, and Quantum Reference Frames as Quantum Geometry": University of Pennsylvania, October 2024
Okinawa Institute of Science and Technology, October 2024
"Quantum Conditional Entropy and the Data Processing Inequality": Institute for Advanced Study Princeton, October 2024
Steve Giddings
"Comments on the information problem: a personal perspective": 50 Years of the Black Hole Information Paradox, Simons Center, November 2025
"Gravitational observables, reference frames, algebras, and puzzles": Quantum Reference Frames 2025, OIST Okinawa, October 2025
"The black hole unitarity crisis and quantum geometry": Quantum Gravity 2025, Penn State, July 2025
"Quantum gravity observables: observation, algebras, and mathematical structure": Observables in Quantum Gravity Conference, Aspen Center for Physics, January 2025
"Panel presentations and discussions on quantum gravity": Nordita Workshop: Quantum Gravity: from gravitational effective field theories to ultraviolet completions, August 2024
"Gravitational wave probes of quantum black holes": Gravity and the Quantum World Workshop, Oxford University, March 2024
"Quantum gravity and Jim Hartle's legacy": KITP Workshop: Jim Hartle's Legacy, February 2024
Additional Seminars and Public Talks
"Black holes in quantum spacetime": UCSB Physics Colloquium, January 2027
"Challenges for describing unitary evolution in nontrivial geometries: pictures and representations": UCSB Seminar, February 2026
University of Würzburg Seminar, December 2025
"Discussion sessions on black holes, observables, and quantum effects": QuRIOS Collaboration Meeting, UCSB, September 2025
"Black holes in quantum spacetime": Aspen Center for Physics Public Lecture, August 2025
"Gravitational wave probes of quantum black holes": Crete CTP Seminar, December 2024
UCSB Seminar, May 2024
QuRIOS Collaboration Meeting (Caltech), March 2024
Richard Myers
"The Functional Approach to Holography in Flat Space": University of Utrecht, Delta ITP Triangle Meeting, April 2026 (Utrecht, Netherlands)
TPI Jena Quantum Theory Seminar, March 2026 (Jena, Germany)
CERN High-Energy Theory Seminar, December 2025 (Geneva, Switzerland)
QuRIOS Collaboration Meeting, UCSB, September 2025 (Santa Barbara, CA)
"Carrollian Partition Functions and the Flat Limit of AdS": Huzhou University High-Energy Theory Seminar, November 2024 (Huzhou, China)
Worldline Seminars Online Series, November 2024
Caltech High-Energy Theory Seminar, October 2024 (Pasadena, CA)
"S-Matrix Path Integral: AdS in the Flat Limit": Simons Collaboration on Celestial Holography Annual Meeting, April 2024 (New York, NY)
"The S-Matrix Path Integral": UCLA Amplitudes Seminar, November 2023 (Los Angeles, CA)
"Systematics of Boundary Actions": USC High-Energy Theory Seminar, April 2023 (Los Angeles, CA)
Pacific Coast Gravity Meeting, Caltech, March 2023 (Pasadena, CA)
SoCal Graduate Strings & Fields Conference, UCLA, March 2023 (Los Angeles, CA)
Kathryn Zurek: Plenary Talk, International Conference on Quantum Science, Jaipur, India, October 2025; Plenary Talk, HSF QuRIOS Collaboration Meeting, Santa Barbara, CA, October 2025; Colloquium, UC Santa Cruz, May 2025; Plenary Talk, UCLA Dark Matter Conference, March 2025; Invited Talk, APS March Meeting Workshop on Fundamental Physics in Atomic and Condensed Matter, March 2025; Plenary Talk, Aspen Conference on Particle Physics, March 2025; Plenary Talk, Aspen Conference on Observables in Quantum Gravity, January 2025; Colloquium, University of Minnesota Duluth, November 2024; Plenary Talk, Cosmo Kyoto, October 2024; Plenary Talk, International Conference on High Energy Physics, Prague, July 2024; Plenary Talk, International Conference on the Identification of Dark Matter, July 2024; Plenary Talk, CERN Theory Institute, June 2024; Plenary Talk, Pheno Symposium, May 2024; Colloquium, Perimeter Institute, May 2024; Plenary Talk, Simons Collaboration on Celestial Holography, April 2024; Plenary Talk, Gravity and the Quantum, Oxford University, March 2024
Carlos Perez-Pardavila
"Entanglement Islands in Braneworlds": Friday Cosmology Seminar, Arizona State University, November 2025 (Tempe, AZ)
"Entanglement Islands and Complexity": QuRIOS Collaboration Meeting, UCSB, September 2025 (Santa Barbara, CA)
"N=2 SCFTs and Families of Hitchin Systems": Southwest Strings Meeting 2025, Utah State University, April 2025 (Logan, UT)
"Entanglement Islands in Braneworlds": IFT HoloClub, Instituto de Física Teórica, June 2024 (Madrid, Spain)
"Hitchin Systems in Type D": Southwest Strings Meeting 2024, Texas A&M University, March 2024 (College Station, TX)