Black Hole Horizons: A New Look at Spacetime and Stability
![The behavior of mass [latex]M(r_h)[/latex] as a function of [latex]r_h[/latex] reveals critical dependencies in the system's dynamics.](https://arxiv.org/html/2603.08222v1/x30.png)
New research delves into the interplay between gravity, electromagnetism, and non-abelian gauge fields to reveal how these forces shape the structure and thermodynamics of black holes.
Science
From Vacuum Decay to Hadron Storms: Exploring the Schwinger Effect
A new review examines how the spontaneous creation of matter from intense fields-the Schwinger effect-is reshaping our understanding of nuclear physics and high-energy collisions.
Graphene Supercircuits Break Time’s Arrow
![The emergence of a finite supercurrent at [latex]\varphi = \pi[/latex] signals a time-reversal breaking instability within a coupled GJJ and LC quantum harmonic oscillator system, occurring within a specific parameter space defined by the coupling constant and temperature (expressed in units of [latex]\Delta\_{0}/k\_{\rm B}[/latex]), and demarcated by a critical temperature [latex]T\_{\mathrm{c}}[/latex], which numerical solutions-and an analytical estimate detailed in Eq. (22)-confirm captures the qualitative behavior of this spontaneous instability given fixed parameters of [latex]\hbar\omega\_{\mathrm{r}}=0.6\Delta\_{0}[/latex] and [latex]\mu\_{0}=10\hbar v\_{\mathrm{F}}/L[/latex].](https://arxiv.org/html/2603.07256v1/x7.png)
New research reveals how coupling graphene Josephson junctions to superconducting resonators can induce time-reversal symmetry breaking and create novel hybrid light-matter excitations.
Predicting the Future: A New Approach to Robust World Models
Researchers have developed a framework that enables agents to learn and generalize to unseen physical environments by actively exploring symmetries within those environments.
Cleaner Superconductors, Coherent Qubits: Tantalum’s Interface Matters
New research reveals a direct link between the quality of superconducting tantalum films and their performance in quantum circuits, demonstrating that interface engineering can dramatically reduce energy loss.
Beyond Quantum Limits: How Detectors, Not Sensors, Constrain Gravitational Wave Astronomy
A new analysis reveals that the way gravitational waves couple to detectors-specifically light propagation-is the dominant factor limiting the sensitivity of current and near-future gravitational wave observatories.
The Shape of Reality: Quantum Mechanics and the Expanding Universe
New research explores how the geometry of moduli spaces-the spaces defining possible universes-impacts quantum behavior and offers a novel perspective on cosmological expansion.
Wormholes and Quantum Sparks: Creating Particles from the Fabric of Spacetime
New research explores how rotating wormholes can generate entangled particles and potentially reveal fundamental insights into quantum gravity.
Beyond Einstein: Probing the Fabric of Spacetime with Atoms
A new review details the ongoing search for subtle violations of fundamental symmetries using precision measurements of atomic and molecular spectra.
Unlocking Energy from the Invisible
![Work extraction protocols demonstrate that energy stored within the harmonic degree of freedom can be successfully harvested; single-well potential experiments show accumulated normalized work [latex]W/\bar{V}_{m}(0)[/latex] remains below unity despite peaking at [latex]\delta t = 1\,\text{s}[/latex], while a double-well potential facilitates work extraction exceeding [latex]VĚ„_{m}(0)[/latex] following barrier crossing, confirming energy retrieval from the system.](https://arxiv.org/html/2603.06160v1/x4.png)
New research reveals how hidden internal dynamics can be exploited to generate power beyond the limits of conventional systems.