Fragile Order: How Quantum Systems Defy Disorder
![The structure defines a quantum bottleneck where [latex]\mathcal{B}_{\rm out}[/latex] emerges as a necessary component within the global definition-a refinement beyond the foundational Definition B.1-suggesting a nuanced interplay between local and global constraints.](https://arxiv.org/html/2603.13212v1/x1.png)
New research demonstrates a surprisingly robust mechanism for spontaneous symmetry breaking in complex quantum magnets, even when faced with significant disorder and low-energy excitations.
Science
Wormholes and the Dark Matter Connection
New research explores how distributions of dark matter, modeled using the Thomas-Fermi profile, could theoretically sustain traversable wormholes.
Unlocking Quantum Secrets with Heat
Heat capacity measurements offer a surprisingly powerful window into the bizarre world of exotic materials and their hidden quantum states.
Hunting for New Physics in B-Meson Decay
![The study correlates asymmetries arising from particle mixing in [latex] B_{s}^{0} \to \phi K_{S} [/latex] decay with both direct CP asymmetry and the parameter [latex] \mathcal{A}_{\rm CP}^{\Delta\Gamma} [/latex], employing a scan across virtual gluon and photon momenta to reveal relationships indicative of underlying particle physics principles.](https://arxiv.org/html/2603.13139v1/x13.png)
Precise measurements of CP violation and isospin symmetry breaking in B-meson decays offer a powerful probe for deviations from the Standard Model.
Unveiling 2D Superconductivity: A Microscopic View
Spectroscopic techniques are providing unprecedented insights into the behavior of electrons in two-dimensional superconducting materials.
Hunting for Exotic Magnets: A Computational Search for Quantum Spin Liquids
Researchers have developed a powerful screening method to pinpoint materials with the potential to host exotic magnetic phases, paving the way for the discovery of new quantum spin liquids.
Molecular Tweaks, Quantum Impacts: How Structure Controls Ytterbium Qubit Performance
![The relaxation times of Yb(trensal), Yb(trenpvan), and Yb(trenovan) were analyzed as a function of temperature, revealing contributions from both simulated Raman and Orbach processes, and further dissection through energy cut-off analysis-at 100K for Orbach relaxation and 10K for Raman relaxation-demonstrated how restricting phonon energy to the interval [0,[latex]\omega_c[/latex]] versus [[latex]\omega_c[/latex], [latex]\omega_{max}[/latex]] alters the calculated [latex]T_1[/latex] relaxation time, thus highlighting the sensitivity of these systems to specific vibrational modes.](https://arxiv.org/html/2603.12160v1/figures/ovan-Raman-T1vsOmega.png)
New research reveals that even minor changes to the molecular structure of ytterbium complexes can dramatically affect their ability to function as qubits, challenging conventional wisdom in quantum materials design.
Paths to Structure: Axiomatizing Coalgebras with Equational Constraints
This research introduces a novel framework for defining and constructing coalgebras using equational path constraints, offering a powerful new lens for understanding behavioral properties.
When Order Fails: Revealing the Secrets of a Quantum Material’s Transition
![The layered material tantalum disulfide ([latex]TaS_2[/latex]) exhibits a charge density wave (CDW) manifesting as a [latex]13 \times 13\sqrt{13} \times \sqrt{13}[/latex] superlattice with discernible atomic-scale corrugations-reaching a few hundred picometres-and spatial variations across the surface, indicating a complex interplay between electronic ordering and local lattice distortions within the Star-of-David motif.](https://arxiv.org/html/2603.11405v1/x5.png)
New research demonstrates that the key structural change in 1T-TaS2 isn’t about forming a gap, but rather a loss of electronic coherence, linking nanoscale disorder to macroscopic behavior.
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.