Black Hole Shadows Shrink Under Quantum Scrutiny
![The shadow radius of the black hole BRBH aligns with observational constraints from the Event Horizon Telescope regarding Sgr A*, falling within the [latex]1\sigma[/latex] and [latex]2\sigma[/latex] confidence regions.](https://arxiv.org/html/2603.11741v1/x8.png)
New research reveals how quantum gravity effects and surrounding plasma influence the observed size of black hole shadows, potentially refining our understanding of these cosmic phenomena.
Science
Smarter Science: Optimizing Experiments for Faster Discovery
![The study demonstrates that an ε-greedy Thompson Sampling algorithm consistently outperforms standard Thompson Sampling and a uniform random approach-particularly around a weighting of [latex] w = 0.01 [/latex]-suggesting that even minor adjustments to exploration strategies can significantly enhance performance in empirical simulations.](https://arxiv.org/html/2603.11267v1/figures/updated_GUI.jpeg)
A new framework balances the speed of adaptive experimentation with the rigor of statistical validation, leading to more reliable scientific findings.
Untangling the Quantum Realm: Controlling Exotic Particles for Future Computation
![The study demonstrates that selective anyon dynamics at a filling factor of [latex]\nu = -\frac{1}{2}[/latex] are exquisitely sensitive to gate voltage, as evidenced by repeated scans revealing predictable shifts in excited state probability and braiding phase-quantities extracted from voltage sweep histograms-and suggesting a pathway toward controllable manipulation of these exotic quasiparticles.](https://arxiv.org/html/2603.11162v1/Fig4.png)
New research demonstrates the ability to selectively manipulate and control different types of anyons – quasiparticles with unique quantum properties – within a layered graphene device.
Beyond the Bathtub: How Memory Shapes the Thermodynamics of Life
![System entropy evolves across distinct life stages-development, maturity, aging, and death-with the rate of recovery from reversible perturbations influenced by memory effects; specifically, longer memory times [latex]\tau_c[/latex] delay return to environmental equilibrium, as evidenced by the broadened fluctuation ranges and non-Markovian behavior observed when comparing [latex]\tau_c = 0[/latex] (blue) to [latex]\tau_c = 2[/latex] (red).](https://arxiv.org/html/2603.12184v1/x1.png)
A new theoretical framework, leveraging the Keldysh formalism, expands our understanding of entropy dynamics in living systems to incorporate the crucial role of non-Markovian effects.
Taming Wild Eigenfunctions on Curved Surfaces
![Within the framework of twoTETₑ-periodic magnetic trajectories confined to a geodesic disk [latex]\mathbb{D}(i,R_E)[/latex], the Poincaré hyperbolic disk model reveals a distinction in preimage behavior: interior points, such as [latex]y_1[/latex], possess two preimages under the mapping Ψ, while boundary points, like [latex]y_0 \in \partial\mathbb{D}(i,R_E)[/latex], exhibit only one, a characteristic detailed through parameters established in the proof of Proposition 2.6.](https://arxiv.org/html/2603.12177v1/x2.png)
New research reveals sharper bounds on the behavior of wave functions in magnetic fields on hyperbolic surfaces, enhancing our understanding of quantum phenomena in curved spaces.
The Arrow of Time in Active Systems
![The study demonstrates that the average local energy propagation rate (LEPR) - calculated for a two-dimensional system with ford=2d=2 - is directly influenced by momentum components [latex]\sigma_p[/latex], as defined in Eq. (72), and varies predictably with dimensionless momentum [latex]p = q_{\parallel} / \alpha[/latex].](https://arxiv.org/html/2603.11450v1/x1.png)
New research reveals how violations of time-reversal symmetry drive irreversibility and entropy production in non-Hermitian field theories, offering insights into the behavior of active matter.
Charting Black Hole Phase Space: A New Geometric Approach
![The thermodynamic behavior of the Bardeen AdS black hole is charted through geodesic analysis using both the [latex]\mathcal{G}^{I}[/latex] and [latex]\mathcal{G}^{I}_{\mathrm{mod}}[/latex] metrics, revealing the boundaries of stability defined by spinodal and temperature-vanishing curves.](https://arxiv.org/html/2603.11567v1/con_vs_mod1.png)
Researchers are refining how we visualize black hole thermodynamics, leading to more accurate predictions of their stability and behavior.
The Unexpected Forces Governing Nanofilament Bundles
New research reveals that the separation of nanofilament bundles isn’t simply driven by repulsion, but exhibits both attractive and repulsive forces governed by a delicate balance of scale.
Bridging Gravity’s Scales: New Insights from String Theory
A novel worldsheet analysis reveals how high-energy quantum gravity connects to low-energy physics, confirming key predictions about the behavior of fundamental forces.
Mapping the Invisible: New Insights into Extreme Gravity Waves
Researchers have calculated a highly accurate gravitational waveform for extreme mass ratio encounters, pushing the boundaries of our ability to model these elusive cosmic signals.