Rewriting Gravity: A New Path to Quantum Spacetime
A novel approach to quantizing gravity challenges established methods by embracing previously excluded degrees of freedom, potentially unlocking a description of spacetime with complex topologies.
Science
Beyond Symmetry: Unveiling Confinement in Chiral Gauge Theories
New research demonstrates how confinement can emerge in chiral gauge theories without the traditional breaking of symmetry, challenging conventional understanding.
Hunting New Physics with Solar Ghosts
The LUX-ZEPLIN experiment is pushing the boundaries of dark matter detection, and yielding new constraints on models that extend the Standard Model of particle physics.
Dynamics in Hilbert Space: A Quantum Leap for Data Assimilation
A new framework leverages operator theory and quantum mechanics to build more efficient and accurate models of complex dynamical systems.
Charting Particle Creation: A New Perspective on Quantum Fields
A powerful, first-quantized approach is reshaping calculations of everything from vacuum decay to high-energy particle collisions.
Unveiling Hidden Charm: A New Look at Particle Interactions
![The study demonstrates how differing decay pathways of [latex]\mathcal{D}\bar{\mathcal{D}}[/latex] mesons-either through direct contact interaction or an intermediate resonance-yield distinct fitted lineshapes in the total cross section for [latex]e^{+}e^{-}\to J/\psi\,\pi^{+}\pi^{-}[/latex], highlighting the sensitivity of observed particle interactions to underlying decay mechanisms.](https://arxiv.org/html/2603.19550v1/x5.png)
Researchers are probing the intricacies of particle physics by analyzing the decay of certain interactions, seeking evidence for exotic states beyond the Standard Model.
Beyond Quantum: Probing Locality at the Collider Frontier
New research outlines how high-energy particle collisions can be used to test the fundamental limits of locality, even without assuming the validity of quantum mechanics.
Fragile Bonds: Tracking Entanglement Loss in Meson Systems
![The study demonstrates that quantum correlations within the [latex]B^{0}\text{-}\bar{B}^{0}[/latex] system are predictably eroded by decoherence, as evidenced by the decreasing values of entanglement metrics - relative entropy, entanglement of formation, π-tangle, and purity - with increasing decoherence parameters and decay time.](https://arxiv.org/html/2603.20154v1/x7.png)
A new study details how quantum entanglement degrades in B meson pairs due to environmental interactions, offering insights into decoherence in open quantum systems.
Unveiling Hidden Quantum States in Frustrated Magnets
![This study of a kagome quantum spin liquid (QSL) model reveals a phase diagram distinguishing between a [latex]\mathbb{Z}_2[/latex] QSL phase and a ferromagnetic (FM) phase, with the emergence of a critical point belonging to the (2+1)d XY* universality class-characterized by anomalous scaling of the quantum Fisher information-and suggests the possible existence of a distinct QSL region beyond the conventional [latex]\mathbb{Z}_2[/latex] phase, all influenced by the interplay between nearest-neighbor hopping and interlayer coupling terms.](https://arxiv.org/html/2603.19951v1/x1.png)
New research demonstrates how subtle quantum properties can be used to map out exotic phases and critical points in complex magnetic materials.
Cosmic Consistency Check: New Test Validates Standard Cosmology
![The reconstruction of the flat-FLRW null test [latex]\mathcal{C}(z)[/latex] from anisotropic BAO data, and its integrated form [latex]\mathcal{C}_{\rm int}(z)[/latex], reveals a discernible pattern when contrasted against the null expectation, suggesting the potential to map cosmological parameters through subtle anisotropies.](https://arxiv.org/html/2603.18986v1/x4.png)
A novel analysis of baryon acoustic oscillations offers a calibration-free method to verify the foundations of our understanding of the universe.