828 papers
Superconductivity is a fascinating state of matter where materials conduct electricity without any resistance, often defying our everyday expectations of how energy behaves. Researchers in this field explore the quantum mechanics behind these phenomena, seeking new materials that can operate at higher temperatures or under more practical conditions. This work holds the promise of revolutionizing everything from power grids to medical imaging devices, making the invisible world of quantum physics feel increasingly tangible and useful.
At Gist.Science, we monitor the arXiv database continuously to bring you the very latest preprints in Cond-Mat — Supr-Con as soon as they are posted. For every new submission, we generate both detailed technical summaries for experts and clear, plain-language explanations for curious readers, ensuring that cutting-edge discoveries are accessible to everyone regardless of their background. Below are the latest papers in this dynamic field, ready for you to explore.
This study demonstrates that electrically tunable spin-orbit coupling in epitaxial Al-InAs Josephson junctions enables the control and reversal of Josephson diode polarity, a phenomenon confirmed by a theoretical model incorporating Rashba and Dresselhaus interactions across multiple transverse subbands.
This paper demonstrates that compact scalar field theories on lattices, through generic quantum geometric couplings acting as quantum gyrators, map to systems of non-identical anyons with fractional exchange phases, thereby enabling a new class of non-local field theories that break the Wigner superselection rule and facilitate all-to-all qubit gates via local control.
This paper proposes that hybrid superconductor-semiconductor nanowire Josephson junctions can be tuned via in-plane magnetic fields to achieve "sweet spots" with dominant third-order nonlinearities, enabling efficient three-wave mixing amplification in a single junction element with potential for gate-controlled frequency tuning and near-zero field operation.
Using generalized hydrodynamics, this study reveals that thermal beating in the dipole-compression modes of a harmonically trapped 1D Bose gas arises from the distinct thermal populations of particle and hole excitations, which generate two evolving oscillation frequencies that deviate from classical hydrodynamic predictions across the interaction crossover.
This paper presents a robust optoelectronic alignment technique for superconducting nanowire single-photon detectors (SNSPDs) that utilizes the temperature-dependent resistivity change induced by optical absorption to achieve sub-micron fiber-to-nanowire coupling precision.
This study characterizes high-quality single-crystalline BiPt as a conventional, time-reversal-symmetric s-wave superconductor with a transition temperature of 1.2 K that operates in the dirty limit and exhibits pronounced anisotropy due to its hexagonal structure, serving as a crucial topologically trivial reference for Bi-based non-trivial superconductors.
This paper analyzes the single-particle scattering rate in strain-tuned SrRuO near a Lifshitz transition, demonstrating that the experimentally observed intermediate-energy power law arises from a superposition of linear and quadratic contributions rather than a new universal scaling, while predicting distinctive anisotropic and non-monotonic behaviors for future experimental verification.
This paper predicts that an accumulation of density of states near the Fermi energy can induce a superconducting order parameter larger at that peak than at the Fermi level itself, a phenomenon driven by the softening of an additional collective mode that resembles a second phase transition.
By integrating multimodal X-ray techniques with electrical and optical measurements, this study reveals that pulsed electromigration in YBaCuO microbridges induces consistent, depth-dependent oxygen vacancy redistribution and crystallographic changes, while demonstrating that optical microscopy alone is insufficient for characterizing irreversible bipolar electromigration effects.
This paper demonstrates that repulsive interactions in a quantum material featuring an X high-order Van Hove singularity can induce triplet superconductivity with a power-law dependence of the critical temperature on interaction strength, providing an upper bound for this phenomenon in SrRuO.