Small 7B reasoning models were fine-tuned on synthetic and curated QFT problems using RL and SFT, yielding performance gains, error analysis, and public release of data and traces.
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Thermodynamics of Kerr-Newman-AdS Black Holes and Conformal Field Theories
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Neural quantum states on K5 yield two families of approximate physical states for the Thiemann-ordered Hamiltonian constraint in Abelianized Euclidean LQG: one flat with non-zero volume (non-normalizable) and one normalizable with zero volume, close to Ashtekar-Lewandowski and Dittrich-Geiller vacua
Higher-order terms in an infinite tower of higher-derivative gravity regularize a 5D Proca-Maxwell system, creating frozen regular cores that mimic extremal black holes and satisfy all energy conditions.
Riemannian manifolds with a closed parallel torsion 3-form are locally N × G (G semisimple), enabling simplified proofs and explicit classification of strong G2, Spin(7), and certain 8D HKT manifolds.
Demonstration of an optical lock-in camera using a Pockels cell switch on an sCMOS array to achieve 2 Mpx imaging at 10 Hz with -62 dBc sensitivity for gravitational wave interferometer applications.
Visibility modulations from extra photon rings appear only for spherically symmetric boson stars near equatorial viewing angles; rotating models show incomplete crescent-shaped rings and no clean modulation.
The emergence of the cosmological arrow of time is identified with a confinement-deconfinement transition in a Z2 lattice gauge theory on LQG spin networks, with the deconfined phase corresponding to a CZX-type SPT phase.
Exhaustive lightcone computation shows open bosonic string states up to level 8 have decay widths within O(1) of each other, with all decays ultimately producing photons at the string scale.
Lyapunov exponents act as order parameters for first-order phase transitions in Horava-Lifshitz black holes with mean-field critical exponent 1/2, while chaos bounds are violated below a horizon-radius threshold even in stable phases.
A non-variational method for coupling scalar fields to gravity reproduces known models and produces asymptotically Kasner Bianchi I solutions under specific conditions.
Finite post-peak detector-frame windows for GW250114 yield a stable common-remnant Kerr interpretation after calibration on synthetic waveforms and robustness checks.
Rigidly rotating charged perfect fluids with constant density or polytropic equations of state can be immersed in the Wald magnetosphere while satisfying integrated conservation laws that reduce to modified Einstein-Euler equations.
Generalizing entropy in the Jacobson framework produces modified gravity that yields a nonsingular de Sitter-like early universe and late-time dynamics equivalent to loop quantum cosmology at leading order.
Introduces a Peak Finder algorithm that selects representative candidates in ASAF GW radiometer searches, reducing false dismissal rate by a factor of 3 when following up 2 candidates at 30 Hz compared to the full-sky approach.
Born-Infeld electrogravity yields a fundamental extremal dyonic black hole in the small-charge limit whose mass and horizon area depend only on the Born-Infeld constant, Newton’s constant, and the speed of light.
Pseudospectrum of Schwarzschild QNMs shows stability of the fundamental mode to infrared perturbations respecting asymptotics and instability of overtones to ultraviolet high-frequency perturbations.
Canonical analysis of Holst gravity at β=0 yields exactly 37 equations (10 differential constraints, 21 algebraic, 6 evolution) matching the free field components, consistent with Einstein 3+1 without fixing lapse or shift.
The Minkowski limit of pure R² gravity is reinterpreted as a thermal singularity via scalar-tensor to Eckart fluid analogy, showing infinite departure from GR rather than recovery.
Up to order four in graviton fields the effective action for a massless chiral fermion is parity-even and equals half the corresponding action for a non-chiral Dirac fermion, with the Weyl anomaly likewise parity-even and halved.
Black hole thermodynamic criticality exhibits universal relaxation scaling and critical slowing down determined by local bifurcation structures.
Mean-field theory extended to unequal critical temperatures shows neutron vortex cores exceed magnetic penetration depth in neutron star outer cores.
Four new exact Bianchi I solutions in a non-variational scalar field model produce Big Bang, Big Crunch, Big Rip, and cyclic behaviors, with stability to inhomogeneous perturbations depending on singularity type.
One-loop metric fluctuations produce secularly growing IR divergences in the Hartle-Hawking wavefunction for complex saddles on R x S3, identical in leading order to the Lorentzian de Sitter case after UV renormalization.
A van der Waals-inspired modification to general relativity renders the gravitational coupling dynamical, providing a mechanism to avoid Big Bang and black hole singularities.
citing papers explorer
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Fine-Tuning Small Reasoning Models for Quantum Field Theory
Small 7B reasoning models were fine-tuned on synthetic and curated QFT problems using RL and SFT, yielding performance gains, error analysis, and public release of data and traces.
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Finding and characterising physical states of Euclidean Abelianized loop quantum gravity using neural quantum states
Neural quantum states on K5 yield two families of approximate physical states for the Thiemann-ordered Hamiltonian constraint in Abelianized Euclidean LQG: one flat with non-zero volume (non-normalizable) and one normalizable with zero volume, close to Ashtekar-Lewandowski and Dittrich-Geiller vacua
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Proca-Maxwell System in an Infinite Tower of Higher-Derivative Gravity
Higher-order terms in an infinite tower of higher-derivative gravity regularize a 5D Proca-Maxwell system, creating frozen regular cores that mimic extremal black holes and satisfy all energy conditions.
-
On the rigidity of special and exceptional geometries with torsion a closed $3$-form
Riemannian manifolds with a closed parallel torsion 3-form are locally N × G (G semisimple), enabling simplified proofs and explicit classification of strong G2, Spin(7), and certain 8D HKT manifolds.
-
An optical lock-in camera for advanced gravitational wave interferometers
Demonstration of an optical lock-in camera using a Pockels cell switch on an sCMOS array to achieve 2 Mpx imaging at 10 Hz with -62 dBc sensitivity for gravitational wave interferometer applications.
-
Ray tracing ultracompact boson stars: visibility modulations and incomplete photon rings
Visibility modulations from extra photon rings appear only for spherically symmetric boson stars near equatorial viewing angles; rotating models show incomplete crescent-shaped rings and no clean modulation.
-
Gauging Time Reversal Symmetry in Quantum Gravity: Arrow of Time from a Confinement--Deconfinement Transition
The emergence of the cosmological arrow of time is identified with a confinement-deconfinement transition in a Z2 lattice gauge theory on LQG spin networks, with the deconfined phase corresponding to a CZX-type SPT phase.
-
All DDF/lightcone two-particle decay widths up to level $8$ in open bosonic string in critical dimension
Exhaustive lightcone computation shows open bosonic string states up to level 8 have decay widths within O(1) of each other, with all decays ultimately producing photons at the string scale.
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Phase Transitions and Chaos Bound in Horava Lifshitz Black Holes using Lyapunov Exponents
Lyapunov exponents act as order parameters for first-order phase transitions in Horava-Lifshitz black holes with mean-field critical exponent 1/2, while chaos bounds are violated below a horizon-radius threshold even in stable phases.
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A general formalism for coupling scalar fields to the Einstein equations without a variational principle
A non-variational method for coupling scalar fields to gravity reproduces known models and produces asymptotically Kasner Bianchi I solutions under specific conditions.
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Deterministic Trust Regions for Finite-Window Black-Hole Spectroscopy in GW250114
Finite post-peak detector-frame windows for GW250114 yield a stable common-remnant Kerr interpretation after calibration on synthetic waveforms and robustness checks.
-
Relativistic figures of equilibrium in the Wald magnetosphere
Rigidly rotating charged perfect fluids with constant density or polytropic equations of state can be immersed in the Wald magnetosphere while satisfying integrated conservation laws that reduce to modified Einstein-Euler equations.
-
Extended Gravity Theories from a Thermodynamic Perspective
Generalizing entropy in the Jacobson framework produces modified gravity that yields a nonsingular de Sitter-like early universe and late-time dynamics equivalent to loop quantum cosmology at leading order.
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Efficient Search for Detection Candidates Using a Peak Finder Strategy for All-Sky-All-Frequency Gravitational Wave Radiometer
Introduces a Peak Finder algorithm that selects representative candidates in ASAF GW radiometer searches, reducing false dismissal rate by a factor of 3 when following up 2 candidates at 30 Hz compared to the full-sky approach.
-
Born-Infeld Electrogravity and Dyonic Black Holes
Born-Infeld electrogravity yields a fundamental extremal dyonic black hole in the small-charge limit whose mass and horizon area depend only on the Born-Infeld constant, Newton’s constant, and the speed of light.
-
Pseudospectrum and black hole quasi-normal mode (in)stability
Pseudospectrum of Schwarzschild QNMs shows stability of the fundamental mode to infrared perturbations respecting asymptotics and instability of overtones to ultraviolet high-frequency perturbations.
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A Lagrangian framework for canonical analysis for the Holst model with $\beta = 0$
Canonical analysis of Holst gravity at β=0 yields exactly 37 equations (10 differential constraints, 21 algebraic, 6 evolution) matching the free field components, consistent with Einstein 3+1 without fixing lapse or shift.
-
New interpretation of the Minkowski limit of $R^2$ gravity
The Minkowski limit of pure R² gravity is reinterpreted as a thermal singularity via scalar-tensor to Eckart fluid analogy, showing infinite departure from GR rather than recovery.
-
The effective gravitational action of a massless chiral fermion and the absence of parity-odd contributions
Up to order four in graviton fields the effective action for a massless chiral fermion is parity-even and equals half the corresponding action for a non-chiral Dirac fermion, with the Weyl anomaly likewise parity-even and halved.
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Degenerate Bifurcations and Universal Relaxation Scaling in Black Hole Thermodynamics
Black hole thermodynamic criticality exhibits universal relaxation scaling and critical slowing down determined by local bifurcation structures.
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The mean-field theory of superfluid-superconducting vortex states in the outer core of neutron stars
Mean-field theory extended to unequal critical temperatures shows neutron vortex cores exceed magnetic penetration depth in neutron star outer cores.
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Non-variational scalar field cosmology: Exact Bianchi I solutions for near-minimal scalar fields
Four new exact Bianchi I solutions in a non-variational scalar field model produce Big Bang, Big Crunch, Big Rip, and cyclic behaviors, with stability to inhomogeneous perturbations depending on singularity type.
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IR behaviour of one-loop complex $\mathbb{R}\times S^3$ saddles
One-loop metric fluctuations produce secularly growing IR divergences in the Hartle-Hawking wavefunction for complex saddles on R x S3, identical in leading order to the Lorentzian de Sitter case after UV renormalization.
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Van der Waals Gravity Theory
A van der Waals-inspired modification to general relativity renders the gravitational coupling dynamical, providing a mechanism to avoid Big Bang and black hole singularities.
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Formation of shell-crossing singularities in effective gravitational collapse models with bounded and unbounded polymerizations
Bounded polymerization in asymmetric LQG-inspired bounce models makes shell-crossing singularities unavoidable for inhomogeneous dust collapse, whereas unbounded polymerization in non-bouncing models permits avoidance for suitable decreasing initial profiles.
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Hall transports from Taub-NUT AdS black holes
Taub-NUT AdS black holes yield finite Hall transport coefficients originating from frame-dragging effects in holographic calculations.
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Optical Appearance and Ringdown of Black Holes in a Kalb Ramond Field Coupled to Perfect Fluid Dark Matter
A black hole in a Kalb-Ramond field coupled to perfect fluid dark matter has modified photon orbits and quasinormal mode frequencies and damping rates that depend on the Lorentz-violating parameter alpha and dark matter parameter lambda.
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Probing Black Hole Phase Transitions through Quasi-Periodic Oscillations
QPO frequencies in RN AdS and Kerr geometries trace distinct thermodynamic phases and their stability when plotted against Hawking temperature.
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Thermodynamic Behavior of a 4D Nonminimal Maxwell-AdS Black Hole
Derives perturbative 4D nonminimal Maxwell-AdS black hole and reports Van der Waals-like behavior plus Hawking-Page transitions in its thermodynamics.
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Combining gravitational wave search pipelines to find subthreshold signals in GWTC-5.0
Multi-pipeline machine learning with conformal prediction up-ranks subthreshold LIGO/Virgo candidates, including GW200311_103121, as signal-like.
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Determination of the metric of a Schwarzschild black hole surrounded by a halo of dark matter
Authors derive an exact metric solution for Schwarzschild black hole plus anisotropic dark matter halo fluid, with A(r)B(r) = 1 + O(10^{-6}) and smooth Darmois-Israel matching at the boundary.
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In-situ total scattering investigation of crystalline ordering in amorphous ion-beam sputtered thin films for interferometric gravitational wave detectors
In-situ total scattering shows parallel structural rearrangements in amorphous tantala during annealing: rapid cationic backbone formation up to 100 Å followed by slower oxygen environment ordering that increases crystallinity.
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Testing loop quantum gravity through EHT observations of M87* and Sgr A* using rotating holonomy-corrected black holes
EHT angular diameter data yield upper bounds on the holonomy correction b (e.g., b ≤ 0.1319M at a=0 for M87*) showing nonzero b remains consistent with observations for RHCBH spacetimes.
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Unified Cosmological Scenario in Holographic $f(Q)$ gravity: From Inflation to Late-Time Acceleration
A holographic f(Q) = ζ Q^n model yields slow-roll inflation consistent with Planck 2018 and late-time expansion compatible with CC+BAO data via CPL parametrization, with mild high-z deviations from ΛCDM.
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Primordial Black Holes in a Radiation-Dominated Universe
3+1 BSSN simulations find the critical overdensity threshold for PBH collapse in radiation era lies between 0.77 and 0.83.
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The conformal null string in $d+2$ and $d$ dimensions
The conformal null string reduces from d+2 to d dimensions via Dirac slices, with the Virasoro-su(1,1) algebra mapping to Carrollian-Weyl symmetry.
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General Relativity via differential forms -- explorations in Plebanski's Formalism for GR
Plebanski's chiral 2-form formulation of GR reveals additional structure in Einstein's equations and supplies new analytical and numerical tools.
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Gravitational lensing around a Kerr-Sen black hole in plasma background
Light deflection and photon orbits around Kerr-Sen black holes are modified by homogeneous and inhomogeneous plasma, with explicit comparisons to the vacuum case.