The entropy of Hawking radiation

hep-th 2026-07 conditional novelty 7.0 of 10

In AdS3, dS3, and AdS4 hyperbolic examples, the Kontsevich-Segal-Witten criterion uniquely selects a three-piece complex contour for timelike extremal surfaces, while timelike strips in AdS4 violate the criterion near...

hep-th 2026-07 conditional novelty 7.0 of 10

Coupling a worldline observer to JT gravity replaces its evolution operator by an exactly computed average over fluctuating Euclidean times; the fluctuations are small in the disk but large on the double trumpet.

hep-th 2025-05 conditional novelty 7.0 of 10

The final state proposal is claimed to survive the AMPS test once the second measurement is assigned to the correct, distillation-created black hole interior.

hep-th 2024-12 conditional novelty 7.0 of 10

A triple-scaling limit of quantum gravity keeps black hole thermodynamics finite and reproduces the Hawking temperature.

hep-th 2024-12 conditional novelty 7.0 of 10

In the presence of a macroscopic observer, the boundary time-band algebra in AdS can be deformed into a type II crossed-product algebra with a commutant, and the modular crossed product is the unique such algebra admi...

hep-th 2024-12 conditional novelty 7.0 of 10

Higher-dimensional spinning black holes generally have nonzero scalar tidal Love numbers, with patterns of zeroes in special limits, computed via point-particle EFT matching.

gr-qc 2026-07 conditional novelty 6.0 of 10

A ringdown analysis of 16 GWTC-3 binary black holes using cWB-reconstructed signals finds the dominant (2,2,0) mode consistent with GR: δf220 = 0.003±0.028 and δτ220 = 0.050^{+0.081}_{-0.086} (90% CI).

hep-th 2026-07 unverdicted novelty 6.0 of 10

Timelike entanglement first law holds in Lovelock gravity about AdS, with both entropy and modular Hamiltonian variations carrying the same coupling factor that renormalizes Newton's constant in the linearized equations.

hep-th 2026-07 conditional novelty 6.0 of 10

Wave chaos in BPS microstate geometries strengthens toward black-hole-like throats while geodesic chaos weakens, and weak-coupling CFT Renyi entropies do not share that bulk hierarchy.

hep-th 2026-06 unverdicted novelty 6.0 of 10

The paper proposes a kinematic space for any subregion of vacuum AdS, whose geodesic 'PEE threads' uniformly cover the subregion and yield tensor-network models that reproduce Ryu-Takayanagi entropy and realize surfac...

hep-th 2026-06 unverdicted novelty 6.0 of 10

Long-string emission from rotating λ-deformed BTZ black holes forces a unique origin B-field that matches the value needed for the string spectrum to agree with the Z_w sector of single-trace T T-bar deformed orbifold...

hep-th 2026-05 unverdicted novelty 6.0 of 10

In holographic Schwinger pair production, the excess capacity of entanglement is √λ(d−2)/(d−1)³ — positive for d>2, zero for d=2 — so the produced pair carries nonlocal magic for d>2.

hep-th 2026-02 conditional novelty 6.0 of 10

In JT gravity, the left confining potential required by spectral discreteness makes the wormhole length turn around and plateau, allowing boundary time to run past the would-be singularity and eliminating future horizons.

hep-th 2026-01 conditional novelty 6.0 of 10

Exact CFT states for colliding particles that form evaporating AdS black holes are constructed, and several coarse-graining maps are shown to convert the exact pure state into mixed semiclassical Hawking radiation wit...

hep-th 2025-12 conditional novelty 6.0 of 10

Analytically continuing and smearing thermal four-point correlators turns them into flat-space scattering amplitudes at a bulk point inside the black hole.

hep-th 2025-11 conditional novelty 6.0 of 10

A proposed universal finite entropy bound for quantum gravity is introduced and linked to the Gibbons-Hawking entropy of our universe, with BMN strings suggested as an unresolved test.

hep-th 2025-10 conditional novelty 6.0 of 10

In the PSSY model, the Wigner negativity (stabilizer magic) of Hawking radiation is O(1) before the Page time and grows as sqrt(2/pi) exp((S_max - S_2)/2) afterward; a similar formula is proposed for holographic state...

hep-th 2025-08 conditional novelty 6.0 of 10

Timelike separated subregions admit a transition-operator entropy, a complexified RT surface, and a timelike entanglement wedge cross section that equals half the analytically continued reflected entropy in AdS3/CFT2.

hep-th 2025-07 conditional novelty 6.0 of 10

Holographic timelike entanglement entropy is defined by analytically continuing all candidate extremal surfaces through the light cone and selecting the one with smallest real part of the area.

hep-th 2025-06 reject novelty 6.0 of 10

The paper proposes a weighted-sum revision of the quantum extremal surface formula, but the weight is assumed rather than derived.

hep-th 2025-06 conditional novelty 6.0 of 10

Entanglement islands in the AdS/bath island model realize the quantum-gravity 'observer' as a Goldstone vector mode, making the island operator algebra an emergent Type II∞ von Neumann algebra.

hep-th 2025-06 conditional novelty 6.0 of 10

Entanglement islands and Page curves can arise in massless gravity without an external bath, and compactly supported gauge-invariant operators exist in islands around generic symmetry-breaking black hole backgrounds.

astro-ph.CO 2025-02 conditional novelty 6.0 of 10

For Standard Model emission, a Schwarzschild primordial black hole of about 6.23 x 10^14 grams would reach its Page time at the current age of the Universe.

quant-ph 2025-01 conditional novelty 6.0 of 10

For a degenerate parametric amplifier coupled to a zero-temperature Markovian bath, the windowed-cosine entropy flux of the output vanishes at large times, while energy and photon number fluxes remain nonzero.

hep-th 2025-01 conditional novelty 6.0 of 10

Localized gravity theories can violate swampland constraints, but satisfy them when defined relative to a higher-dimensional gravity completion, dubbed relative quantum gravity.

hep-th 2025-01 conditional novelty 6.0 of 10

An observer inside a closed universe gets an approximately standard quantum description on a Hilbert space of dimension about e^{their entropy}, accurate up to exponentially small errors.

hep-th 2024-12 conditional novelty 6.0 of 10

Magnetic AdS wormholes, combined with a metastable Higgs potential, can seed hilltop Higgs inflation consistent with observed CMB parameters.

hep-th 2024-11 conditional novelty 6.0 of 10

A Wronskian-based method gives explicit torus conformal blocks for the Z2 orbifold of E8,1, yielding a two-periodic twist two-point function and the second Rényi entropy with universal logarithmic divergence plus UV-f...

hep-th 2026-08 conditional novelty 5.0 of 10

Rare fluctuations in quantum walks are ruled by a measurement-induced relative entropy, and applying this to stochastic inflation yields a steady state that violates detailed balance.

hep-th 2026-07 conditional novelty 5.0 of 10

A rotating regular black hole leaves a remnant because the correction term in the generalized entropy of Hawking radiation vanishes at a finite mass above the extremal limit.

hep-th 2026-07 conditional novelty 5.0 of 10

At scrambling time I(B+:B−)=0 forces I(I:R)→∞, interpreted as conservation of geometric correlation, while I(I:R+:R−) is shown always negative via Cauchy-slice identities.

hep-th 2025-11 conditional novelty 5.0 of 10

In the Unruh–de Sitter state the anomaly flux J=(N/48π)(κ_b²−κ_c²) is positive throughout the static patch, so every neutral SdS black hole evaporates monotonically and only the Nariai limit has zero flux.

hep-th 2025-07 conditional novelty 5.0 of 10

Deformed CFTs on a strip with a stretched-horizon conformal boundary are proposed as UV completions of pure and matter-coupled JT gravity, reproducing its entropy and a Page-curve-like saturation.

quant-ph 2025-06 conditional novelty 5.0 of 10

The authors identify the black hole Page time with the interpolation threshold of quantum linear regression, linking information recovery to double descent through the Marchenko-Pastur law.

gr-qc 2025-06 conditional novelty 5.0 of 10

A universe with an AdS (negative cosmological constant) phase at recombination and another at low redshift is compatible with Planck, DESI, Pantheon Plus and SH0ES data, though not preferred by them.

hep-th 2025-01 conditional novelty 5.0 of 10

For local quenches in d>2 CFTs, the excess entanglement entropy of radiation grows as ξ^{d/2} at early and late times, obeys an all-time relative-entropy bound, and the holographic model produces a Page-like curve.

gr-qc 2025-01 conditional novelty 5.0 of 10

A unitary toy model in which cascading interior Hawking partners act as new pair sources produces a Page curve and complete energy transfer to radiation.

hep-th 2024-11 conditional novelty 5.0 of 10

Reflected entropy in T-bar-T-deformed AdS3/BCFT2 computed via island and defect extremal surface prescriptions agrees at leading order in the cutoff, and its Page curves show a discontinuity at the Page time.

hep-th 2024-11 conditional novelty 5.0 of 10

Placing a Dirichlet wall just outside the BTZ horizon produces a dense spectrum of normal modes that, in the continuum limit, yields a thermal two-point function at the Hawking temperature.

hep-th 2026-07 conditional novelty 4.0 of 10

Wald-like Noether charge of the DREH plus Polyakov-Liouville action yields the island generalized entropy and unitary Page curves for eternal and quasi-stationary evaporating black holes.

hep-th 2026-07 conditional novelty 4.0 of 10

A generalized defect-extremal-surface prescription for AdS3/ICFT2 is shown to match island-formula entropies in the large-tension limit and to produce Page curves for 2d eternal black holes.

hep-th 2025-12 conditional novelty 4.0 of 10

For a Schwarzschild-surrounded acoustic black hole, phonon entanglement entropy follows a Page curve in the non-extremal case but diverges (no Page time) in the extremal case, according to the island formula.

hep-th 2025-08 reject novelty 4.0 of 10

The paper's central claim, that a Horndeski-gravity residual entropy -ξ/6 identifies smooth-interior microstates and firewalls, is an unsupported interpretation of previously derived formulas.

hep-th 2025-07 conditional novelty 4.0 of 10

This thesis derives deformations of celestial chiral algebras in self-dual gravity on curved backgrounds, obtaining W(infinity) on Eguchi-Hanson space, Ldiff_q(C) under Moyal deformation, and a two-parameter deformati...

hep-th 2025-01 conditional novelty 4.0 of 10

In JT gravity toy models, late-time modular entropy and capacity of entanglement scale inversely with n times the inverse temperature, supporting a thermal reading of the replica parameter.

gr-qc 2024-11 reject novelty 4.0 of 10

The paper proposes that the black hole singularity, modeled as a random network of elementary degrees of freedom, carries entropy proportional to M^2, matching the scaling of Bekenstein-Hawking entropy.

gr-qc 2024-11 unverdicted novelty 2.0 of 10

A review arguing that black hole remnants remain viable and that the species and entropy objections to them are not decisive, so remnants could resolve the information paradox.

hep-th 2024-12 accept novelty 1.0 of 10

A pedagogical review by Edward Witten that derives and explains the standard results of black hole thermodynamics: black hole entropy and temperature, the Unruh effect, the Euclidean approach, and the Ryu-Takayanagi formula.

hep-th 2025-02 unverdicted

A lecture-note review of the KMS derivation of Hawking radiation and of the island/QES computation that produces the Page curve for an eternal black hole.