New research demonstrates a pathway to detect analogue Hawking radiation using a quantum sensor embedded within a chiral spin chain, offering a novel platform for studying quantum gravity effects.
![The study demonstrates that tau pair spin correlations exhibit entanglement-quantified by [latex]\mathcal{C}>0[/latex]-and nonlocality-signaled by [latex]\mathfrak{m}\_{12}>1[/latex]-as functions of center of mass energy and scattering angle, revealing intrinsic quantum properties within particle interactions.](https://arxiv.org/html/2602.03960v1/m12.png)
Future lepton colliders offer an unprecedented opportunity to explore the fundamental nature of quantum entanglement and nonlocality in high-energy particle collisions.
![Electron-mediated nuclear spin-spin interactions induce a decoherence time [latex]T_2[/latex] that is demonstrably sensitive to the electronic correlation length ξ, with calculations-using parameters including a flip angle of 75° and a dissipation parameter set to zero-showing [latex]T_2 \approx 145\,\rm{s}[/latex] for [latex]\xi = 2.5\rm{a}[/latex], a value corroborated by experimental measurements in YBa2Cu3O7-δ and aligning with prior theoretical work, as evidenced by simulations performed on a 200x200 lattice of 40,000 spins.](https://arxiv.org/html/2602.02732v1/x9.png)
New simulations leverage the power of GPU computing to model the complex interactions of strongly correlated electrons, offering insights from nuclear magnetic resonance data.
![The study demonstrates consistent convergence on challenging 20-dimensional benchmarks-Ackley, Rastrigin, and Schwefel functions-achieved through an initialization of 10 points, iterative proposal of 10 candidates, and averaging across 10 independent runs, as evidenced by decreasing objective values and minimized feature-space distance to the global optimum-[latex] \min ||x - x^*|| [/latex]-across all tested functions.](https://arxiv.org/html/2602.03319v1/img/math/math_res.png)
A new framework leverages the principles of information theory to efficiently navigate complex materials spaces and accelerate the discovery of optimal compounds.
![The reflection probability [latex]R(\omega)[/latex] of a charged Bardeen black hole is demonstrably modulated by the parameters α and β, with increasing α suppressing reflection and increasing β enhancing it-a complementary behavior observed across variations of [latex]\alpha = 0.1, 0.2, 0.3[/latex] at fixed [latex]\beta/M = 1[/latex] and [latex]\beta = 1, 1.5, 2[/latex] at fixed [latex]\alpha = 0.2[/latex], given parameters [latex]M = 1[/latex], [latex]Q = 1[/latex], and [latex]q = 0.1[/latex].](https://arxiv.org/html/2602.02586v1/x27.png)
New research explores how the interplay of dark matter, cosmic strings, and electrical charge alters the fundamental properties and observable signatures of Bardeen black holes.
![The Page curve for a non-extremal Kerr [latex]AdS_4[/latex] black hole-shown as a solid line-reveals how the inclusion of an island-represented by a blue line-alters the calculation of entanglement entropy compared to its omission, depicted in red.](https://arxiv.org/html/2602.03366v1/x4.png)
New research suggests a resolution to the black hole information paradox by demonstrating how entanglement can preserve information seemingly lost to Hawking radiation.
New research reveals a hidden source of magnetization in quantum materials arising not from electron spin, but from the curvature of momentum space.
![The metric function [latex]f(r)[/latex] reveals a nuanced relationship between horizon configurations and spacetime geometry in charged Hayward black holes, demonstrating how parameters such as [latex]g/M[/latex], α, and [latex]\beta/M[/latex] dictate transitions from standard Schwarzschild horizons to regular black holes with two horizons, non-extremal cases exhibiting dual horizon crossings, and ultimately, to scenarios involving extremal tangencies or even naked singularities-all while reflecting the non-flat nature of charged de Sitter spacetimes through asymptotic behavior of [latex]f(\in fty) = 1 - \alpha < 1[/latex].](https://arxiv.org/html/2602.02621v1/x1.png)
A new study explores how dark matter and string clouds affect the observable characteristics of charged Hayward black holes, potentially offering pathways to differentiate them from their standard counterparts.
New research bridges the gap between quantum mechanics and stochastic thermodynamics, revealing how interactions with quantum environments can reshape our understanding of heat and work.
![The study demonstrates how approximations to the effective potential-ranging from full calculations using [latex]CosmoTransitions[/latex] to those neglecting Daisy contributions-systematically shift the computed bounce action [latex]S\_{3}(T)[/latex], with results benchmarked against a fit from prior work to polynomial potentials, thereby revealing the sensitivity of cosmological phase transitions to the details of potential calculations.](https://arxiv.org/html/2602.02829v1/x6.png)
A new semi-analytical framework streamlines the calculation of gravitational wave signals originating from cosmological phase transitions, offering a computationally efficient path to understanding the universe’s earliest moments.