New research delves into the exotic light-matter interactions arising from broken symmetries in quantum materials, opening doors to advanced metamaterials and quantum devices.
![The distributions of [latex]\pi^+ \pi^-[/latex] and [latex]K_S^0 K_S^0[/latex] pairs are modeled with relativistic Breit-Wigner functions to identify resonance peaks, while a smoothly varying function accounts for residual background, effectively distinguishing signal from noise in the data.](https://arxiv.org/html/2601.09777v1/x6.png)
New results from the ALICE experiment reveal how short-lived particles can illuminate the final moments of heavy-ion collisions and probe the structure of exotic hadrons.
A new spectroscopic technique allows researchers to directly map the geometric and topological properties of materials by analyzing how light interacts with their electronic structure.
Researchers have harnessed the unique properties of dissipative Rydberg atom time crystals to achieve multi-parameter sensing with accuracy surpassing classical limitations.
![The system demonstrates how variations in a deformation parameter influence energy distribution-specifically, the real part of the Hawking-Eberhardt function [latex]\text{HEE}[/latex] and quantities [latex]\mathcal{Q}\_{\pm}[/latex]-for both purely timelike intervals and scenarios with non-vanishing chemical potential, suggesting a nuanced relationship between spacetime geometry and energy fluctuations at [latex]t=2[/latex], [latex]\beta=\sqrt{8}\pi[/latex], [latex]\Omega=0[/latex], and [latex]c=12\pi[/latex].](https://arxiv.org/html/2601.10213v1/x4.png)
New research explores how entanglement behaves in two-dimensional quantum field theories distorted by specific types of deformation, using a powerful connection between gravity and quantum mechanics.
Researchers have demonstrated the ability to engineer complex topologies in space and time using a novel type-II hyperbolic lattice structure.
![Light can induce magnetization through the intrinsic quantum geometry of a material, specifically via the quadrupole density of the quantum metric and a weighted quantum metric term [latex]\partial\left(Gv\right)[/latex], demonstrating a pathway where polarized light directly influences magnetic properties.](https://arxiv.org/html/2601.09637v1/x1.png)
New research reveals that light can induce magnetism in materials through subtle geometric properties of their electronic structure.
![The study demonstrates how the Zeeman effect, parameterized by [latex] R_s [/latex], modulates Landau levels and their corresponding oscillations, revealing that a strong Zeeman effect ([latex] R_s = -1 [/latex]) can induce a π phase shift in the oscillating conductivity, precisely mirroring the signature of a non-trivial Berry phase ([latex] \beta = 0.5 [/latex]) observed with [latex] R_s = 1 [/latex], under conditions of oscillation frequency [latex] F = 129.5 T [/latex], Fermi energy [latex] E_F = 60 meV [/latex], and effective mass [latex] m^* = 0.25 m_0 [/latex].](https://arxiv.org/html/2601.09560v1/x4.png)
A new analysis reveals significant challenges in uniquely determining the Berry phase of materials using only quantum oscillation measurements.
![Simulated annealing reveals that complex spin configurations-including single and double-[latex]QQ[/latex]-spiral and staggered states-emerge from local interactions, with the resulting magnetic order dependent on parameters like temperature [latex]K[/latex], static interaction strength [latex]J_{sta}[/latex], and spiral wavevector [latex]Q_{sp}[/latex], as demonstrated by the variety of observed patterns and the unnormalized superposition [latex]\bm{S}_{i}[/latex] serving as a comparative reference.](https://arxiv.org/html/2601.09267v1/x2.png)
New research reveals how competing magnetic interactions can create complex, multi-state spin arrangements with potentially unique electronic properties.
New research explores how applying principles of critical phenomena to memristor devices can unlock deeper, more stable, and energy-efficient memory architectures.