Echoes of Vibration: Unveiling Solid-State Dynamics with Light
![The study reveals that fitting the [latex]1n{}\_{n}^{1}[/latex] of fundamental phonon-frequency components within the quasistatic regime-using both dynamic and frozen Kohn-Sham potentials-demonstrates a correlation to integrated even-harmonic yields observed when the lattice is fixed, suggesting a nuanced interplay between potential dynamics and harmonic generation.](https://arxiv.org/html/2603.09156v1/x4.png)
Researchers have discovered a new way to probe the subtle movements of atoms within solids using the echoes of light generated in a carefully designed experiment.
Science
Beyond Equilibrium: A New Lens for Complex Systems
![The function [latex]\exp{q}[/latex] exhibits distinct behavior depending on the value of [latex]q[/latex]; when [latex]q[/latex] equals 0.5, the function is defined for values greater than -2, while a value of [latex]q[/latex] equal to -0.5 restricts the domain to values less than 2, demonstrating a clear relationship between the parameter and the function's permissible input range.](https://arxiv.org/html/2603.08896v1/x8.png)
This review introduces a dynamical systems approach to thermodynamics that extends beyond traditional assumptions of additivity, offering insights into systems far from equilibrium.
Unmasking Hidden Eccentricity in Black Hole Collisions
New techniques reveal subtle clues in gravitational wave signals that can expose the true orbital history of merging black holes.
Symmetry’s Shortcut: Optimizing Complex Calculations with Emergent Supersymmetry
![The analysis demonstrates that the supersymmetric Ward identity [latex]\gamma_f = \gamma_s[/latex] holds consistently across all loop orders up to four, evidenced by the convergence of curves at two specific points which signify that the generator Lagrangian [latex]\mathcal{L}^{\text{gen}}[/latex] achieves supersymmetry at those values.](https://arxiv.org/html/2603.09520v1/desmos-graph.png)
Researchers are leveraging the power of supersymmetry – even where it doesn’t naturally exist – to dramatically speed up calculations in notoriously complex physical models.
Black Hole Shadows and the Quantum Realm
New research explores the interplay between light, gravity, and quantum effects around black holes using a unique holographic approach.
Connecting the Dots: A New Framework for Scientific Unification
A novel ‘bridge theory’ proposes a way to analyze the relationships between different scientific disciplines and assess the validity of their interconnected representations.
Beyond Symmetry: Unveiling Hidden Charges at the Universe’s Edge
New research extends the framework for understanding asymptotic symmetries at spatial infinity, revealing a richer structure than previously known.
Simulating the Universe: Relativistic Fields Come to Life in a Bose-Einstein Condensate
![A two-dimensional Bose-Einstein condensate is utilized as a quantum simulator, encoding a massive relativistic field through spatially varying spin states, where locally measured population imbalances and relative phases-coherently coupled by radio-frequency fields-effectively model the sine-Gordon equation in a Josephson regime defined by [latex]\mu\_{\text{s}}\gg\hbar\Omega[/latex], and experimental realization involves imaging hyperfine states of [latex]^{39}K[/latex] to visualize imprinted phase gradients via transverse and longitudinal spin projections.](https://arxiv.org/html/2603.08840v1/x1.png)
Researchers have successfully simulated massive relativistic fields in two dimensions using a quantum system, opening new avenues for understanding fundamental physics.
Beyond the Standard Model: Unveiling the Mysteries of Exotic Bottom Hadrons
A new wave of experimental results is challenging our understanding of hadron structure, particularly for states containing b-quarks and produced in decays of b-hadrons.
Beyond the Standard Model: Hunting for New Physics in Rare Particle Decays
![The decay process of [latex]\bar{B}^{0}_{s}[/latex] into [latex]D^{*+}_{s}[/latex] (which further decays into [latex]D^{+}_{s}\pi^{0}[/latex]) alongside a tau lepton and its antineutrino is characterized by specific angular definitions - theta, theta-star, and chi - crucial for a complete kinematic description of the event.](https://arxiv.org/html/2603.09133v1/x16.png)
A new theoretical analysis delves into the subtle signatures of semileptonic decays to reveal potential deviations from established physics.