Twisted Superconductors Reveal Hidden Order
![The observed modulation of [latex] dV/dI [/latex] with perpendicular magnetic fields in a 45° twisted superconducting junction reveals a chiral order, where zero or half-period phase differences-and consequently, identical or opposing chiralities in adjacent Josephson junctions-are dictated by the applied bias current, indicating that the system settles into free energy minima defined by [latex] \alpha_{min} = \pm \dfrac{\pi}{2} [/latex] and manifesting as anomalous phase shifts of either π or [latex] -\pi [/latex].](https://arxiv.org/html/2603.12092v1/x3.png)
A novel superconducting device built from twisted materials exhibits unusual quantum behavior, hinting at the emergence of new interfacial states.
Science
Beyond the Horizon: Exploring Multi-Way Quantum Junctions
New research delves into the exotic geometry of ‘booklet wormholes,’ revealing connections between quantum entanglement and the fundamental nature of spacetime.
Charting the Dense Matter Frontier: QCD at Extreme Conditions
This review explores recent advances in understanding the phase structure of quantum chromodynamics at high baryon densities, revealing insights into the behavior of matter within neutron stars and beyond.
Beyond Mobility: Unveiling Hidden Symmetries in Exotic Quantum Matter
New research establishes a surprising connection between restricted excitation movement and a duality linking foliated and exotic quantum field theories.
Beyond Time’s Arrow: Reversing Cause and Effect
New research proposes a framework called ‘subtime’ to explore how information exchange within quantum systems could redefine our understanding of causality and the emergence of the classical arrow of time.
Can Machines Truly Want to Survive?
New research explores how to determine if an autonomous agent’s drive to continue functioning is a fundamental goal or simply a means to an end.
Singular Matter, Regular Spacetime: A Gravity Paradox
![The study of Hayward-like quantum theories of gravity reveals that spacetime curvature, as quantified by the Kretschmann scalar [latex]\alpha^{2}R\_{abcd}R^{abcd}[/latex], reaches a maximum in vacuum solutions and becomes increasingly pronounced with increasing parameters <i>D</i> and <i>N</i>, suggesting a fundamental limit to the theoretical construction of spacetime itself as defined by these parameters.](https://arxiv.org/html/2603.10110v1/x4.png)
New research demonstrates that sufficiently extreme matter distributions can surprisingly prevent the formation of spacetime singularities within quasi-topological gravity theories.
Decoding Binary Signals: A New Framework for Gravitational Wave Analysis
![The emitted scalar energy flux from binary systems at a fixed orbital radius of [latex]p/M = 8[/latex] varies predictably with eccentricity and inclination, demonstrating that the magnitude of this flux-normalized across all examined spins-is strongly influenced by the system’s spin parameter [latex]a/M[/latex] for orbital configurations where [latex]\ell = m = 1[/latex].](https://arxiv.org/html/2603.10116v1/plots/Fig13.png)
Researchers have developed a powerful numerical tool to accurately model the gravitational waves emitted by asymmetric binary systems, paving the way for more precise tests of Einstein’s theory and the search for new fundamental fields.
Twisted Order: Tuning Quantum States in Bilayer Semiconductors
Researchers have demonstrated a pathway to control the transition between distinct quantum states in InAs/GaSb bilayers, opening new avenues for exploring exotic electronic phenomena.
Beyond Lorentz: Quantum Gravity from String Solitons
New research reveals a path to describing quantum gravity within a non-Lorentzian framework by examining the decoupling limit of D-branes and string solitons.