815 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 paper decomposes the superfluid weight in magic-angle twisted bilayer graphene into conventional and geometric contributions, revealing that while remote bands exclusively enhance the geometric component to approximately 55–58%, the geometric fraction peaks at 27–33% near the strongest superconducting fillings of .
Using controlled diagrammatic Monte Carlo simulations on the half-filled Lieb lattice, this study reveals that flat-band superconductivity exhibits a linear pairing response to attractive interactions and identifies a characteristic temperature as a controlled upper bound for , which is maximized when all three bands touch at a single momentum point.
This paper presents an analytically tractable microscopic model of a fractionalized Fermi liquid (FL) on a square lattice, where conduction electrons interact with a static Yao-Lee spin liquid, revealing a small Fermi-surface phase that violates the Luttinger count and exhibits Fermi arcs and a divergent Sommerfeld coefficient, offering potential insights into the pseudogap phase of cuprates.
This study theoretically demonstrates that inter-site Coulomb interactions on a spinless kagome lattice at van Hove filling drive a hierarchy of charge instabilities, favoring 22 loop current orders and nematic states while suppressing onsite charge order, thereby offering a potential mechanism for the exotic superconductivity and time-reversal symmetry breaking observed in AVSb kagome metals.
This paper presents and experimentally validates an improved method for quantizing superconducting circuits by incorporating material- and geometry-dependent kinetic inductance, which significantly reduces the average error in predicting mode frequencies from 5.4% to 1.1% compared to conventional approaches.
This paper proposes topological altermagnetic Josephson junctions that overcome the orbital field limitations of conventional planar junctions by utilizing altermagnets' intrinsic spin-polarized band splitting and zero net magnetization to robustly host Majorana end modes, with their existence and spin properties tunable via crystallographic orientation and compatible with high- platforms.
This study employs density functional theory and functional renormalization group methods to demonstrate that strain engineering and electron doping in LaNiO thin films can enhance the superconducting transition temperature by increasing the density of states at the Fermi level while maintaining robust -wave pairing symmetry.
This paper reports on the successful staged development of three ReBCO high-temperature superconducting magnet prototypes (P1–P3) utilizing 3D-printed aluminum frames, specialized winding mechanics, and solder potting to validate manufacturing, thermal management, and quench mitigation strategies for the upcoming non-planar Columbia Stellarator eXperiment (CSX).
This study resolves the apparent discrepancy between superconducting phase diagrams in twisted bilayer WSe at different twist angles by demonstrating a smooth evolution of superconductivity across the range, revealing its consistent proximity to Fermi surface reconstruction and antiferromagnetic ordering rather than specific singularities, thereby establishing the system as a versatile platform for investigating correlated phases.
This paper investigates the emergence of a time-crystalline phase in a single-band holographic superconductor by extending the AdS/CFT framework with nonlinear gauge-scalar coupling and external driving, revealing broken time-translation symmetry through multi-scale analysis and numerical quasinormal mode computations.