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.
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.
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.
citing papers explorer
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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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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.