Gravitation & Nuclear · Physics & Astronomy
General Relativity & Quantum Cosmology
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130 papers, from 10 September 2026 to 5 November 2026: 130 arXiv preprints.
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Newest papers, page 4
Observational Signatures of Kerr Black Hole Lensing
Gravitational lensing by rotating black holes is modeled, and the null geodesic equations in the strong field regime are integrated numerically.Multi-Time States in Quantum and Operational Probabilistic Theories: An Axiomatic Framework
Quantum states over time were introduced, in part, to extend Bayesian probability to quantum theory and have since found applications across diverse areas, ranging from quantum causality and…Trapping of nanofabricated SiO$_2$ high-aspect-ratio discs in an optical lattice
We describe the nanofabrication and loading of lithographically patterned, high aspect ratio $10$ $μ$m diameter silicon dioxide discs with thickness of $400$ nm into an optical standing wave trap in…Metric and Dispersive Dynamics of Phase Perturbations in Bohmian Quantum Mechanics
By linearizing the hydrodynamic equations associated with the Madelung transformation in the context of Bohmian dynamics, we derive an effective metric for the phase perturbation around a background…How do late-time photons "record" primordial curvature perturbations?
Inflationary cosmology faces a fundamental gap between primordial quantum fluctuations and the classical cosmic history inferred from observations.Minimal-length kinematics of coherent light and a proposed two-color vacuum chronoscopy
The unification of quantum theory and general relativity suggests the existence of a minimal measurable length, leading to a generalized uncertainty principle (GUP) and an energy-dependent vacuum…Directional effects of the Unruh effect on steering harvesting
We investigate directional quantum steering harvesting by two uniformly accelerated non-identical Unruh-DeWitt detectors coupled to a massless scalar field in the Minkowski vacuum.Binary-lens amplification of starlight: from magnification flares to quasi-periodic tracking of orbital evolution
Supermassive black hole binaries (SMBHB) are expected at the center of galaxies as a result of galaxy mergers.Finite-cutoff geometry from double-scaled SYK
We develop a finite-cutoff holographic description of the double-scaled SYK (DSSYK) model.Spectrally enhanced gravitational redshift signals in photonic interferometry
Quantum mechanics and general relativity are remarkably successful, yet their joint predictions remain beyond direct experimental reach.EMRIs in Kerr Spacetime: The Role of Inclination Diffusion
Extreme mass ratio inspirals (EMRIs) are expected to be a major source of gravitational waves (GWs) for the future {\it Laser Interferometer Space Antenna} ({\it LISA}).Gravity from generalized entropy
Gravity from entropy (GfE) identifies its Lagrangian with the geometric quantum relative entropy (GQRE) between the spacetime metric and a metric induced by matter and curvature, treating the metric…Evidence for Hierarchical Turbulent Scaling in Nearby Star-Forming Galaxies
We find recurring signatures of intermittency in molecular-gas velocities from cloud to galactic scales.MRI Turbulence versus $α$-Viscosity in Circumbinary Disks: Implications for Gravitational-Wave Dephasing and Accretion Variability
Our understanding of gas torques on massive black hole binaries (MBHBs) relies on hydrodynamical (HD) simulations of circumbinary disks (CBDs) in which an $α$-viscosity models angular momentum…Quantum Reference Frames in terms of Tetrads
We adapt to the context of quantum theory the treatment, familiar in relativity theory, of a reference frame as a tetrad.Mathematical framework for simulation of non-perturbative cavity optomechanics with plate-like dielectrics
Cavity optomechanical models typically treat a sensor either as a perturbative polarizable object in a pre-existing optical field, or solve the field at a fixed equilibrium and linearize in a fixed…Primordial Graviton Entanglement in Quasicrystalline Inflation
We study the entanglement structure of gravitons in quasicrystalline inflation.Nonperturbative optomechanics with thin, weakly reflective intracavity dielectrics
Levitated dielectric sensors are often treated as perturbative probes of a pre-existing optical field.Learning Schwarzschild Geodesic Motion with Lagrangian Neural Networks
Lagrangian Neural Networks (LNNs) learn dynamics from trajectory data by parameterizing a scalar Lagrangian and deriving accelerations through the Euler--Lagrange equation, providing a variational…Holographic Krylov complexity in confining backgrounds: particle, string, and frames
We investigate holographic Krylov complexity in bottom-up holographic QCD models describing the confined phase, using the recently proposed correspondence between the growth rate of Krylov…