New research reveals a surprising rule governing the behavior of quantum magnets on triangular lattices, demonstrating that external magnetic fields can actually restore broken symmetry.
New research reveals how performing local measurements on quantum spin chains can trigger a shift in entanglement, potentially destroying the delicate order of symmetry-protected topological phases.
New research suggests that gravitational wave echoes, potentially indicating exotic compact objects, are naturally suppressed in certain gravity theories that extend beyond Einstein’s general relativity.
This review explores the latest techniques for understanding the complex spectrum of states within string theory and their interactions.
A new analysis reveals that observational data places stringent limits on deviations from Hermiticity in quantum mechanics, impacting our understanding of the universe’s earliest moments and long-term evolution.
![The study demonstrates that near a quantum critical point, Fisher zeros coalesce into expanding closed loops, with the inverse imaginary part of the rightmost zero scaling linearly with [latex]1-g[/latex], and a divergence in the density of states-manifesting as van Hove singularities-occurs as [latex]g[/latex] approaches zero, evidenced by dispersion relations exhibiting a Luttinger-liquid velocity proportional to [latex]\sqrt{1-g^{2}}[/latex], while a small anisotropy introduces a dependence of [latex]1/\beta_{i0} \sim \sqrt{0.99-g^{2}}[/latex] for open zero lines.](https://arxiv.org/html/2602.05899v1/x4.png)
A new analysis of the quantum XY chain reveals how complex partition functions and Fisher zeros map out its exotic phase behavior and spectral properties.
![The study demonstrates that quasiparticle heating remains sustained over time within a narrow measurement bandwidth when [latex]\Delta_{q}[/latex] is tuned near [latex]2t\cos(q-p)-E_{b,q}[/latex] for [latex]q=2[/latex], suggesting a resonant condition maintains energy within the system.](https://arxiv.org/html/2602.05924v1/narrow_counting_heating.png)
New research demonstrates how the bandwidth of weak measurements can control the dynamics of particles and quasiparticles in a Bose-Einstein condensate array.
![The study identifies a series of avoided crossing points corresponding to quantum resonances-specifically 1:6, 2:14, 1:8, 2:18, and 1:10-and demonstrates that linear extrapolation of these points at [latex]\hbar=0[/latex] aligns with the bifurcation energies of corresponding classical resonances, suggesting a continuous transition between quantum and classical behavior despite inherent complexities in resonance phenomena.](https://arxiv.org/html/2602.04793v2/x5.png)
New research reveals a precise link between the predictable behavior of classical systems and the seemingly random world of quantum resonances.
New research maps the regions around rotating black holes where light becomes permanently trapped, revealing a surprising complexity in their structure.
A century after its inception, this review traces the fascinating history of Fermi-Dirac statistics and its profound impact on our understanding of the quantum world.