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 demonstrates a breakthrough in superconducting nanowire single-photon detectors by using current-biased superconducting rails to redistribute current, enabling devices up to 0.1 mm wide to reach their intrinsic performance limits with near-unity internal detection efficiency and a ten-order-of-magnitude reduction in dark count rates.
This paper proposes a theoretical model demonstrating that when a spin-triplet -vector, spin-orbit interaction, and Zeeman field are mutually perpendicular, the interplay between these vectors suppresses superconductivity at weak fields but induces reentrant superconductivity at strong fields, a phenomenon characterized by a transition from odd-frequency to even-frequency Cooper pairs.
This paper investigates two-orbital models on a square lattice and demonstrates that interband pairing drives the emergence of incommensurate -wave pair density wave superconductivity, which competes with uniform pairing and density wave orders, particularly in correlated multi-orbital materials and specific lattice geometries.
This paper identifies the granular nature of superconductivity, characterized by two distinct grain phases coupled via a Josephson junction network, as the microscopic origin of the persistent two-step resistive transition in LaPrNiO thin films, highlighting the critical need for improved oxygen homogeneity to achieve bulk superconductivity.
This paper introduces an accurate and efficient spectral method based on Chebyshev polynomial expansions and the method of lines to solve axisymmetric magnetization problems in non-flat thin type-II superconducting shells, providing benchmark solutions for general numerical approaches.
This paper presents a comprehensive theory of the Josephson current in disordered superconductor-normal metal-superconductor junctions with generic spin-dependent fields, revealing that the anomalous Josephson effect remains robust or is enhanced by moderate disorder while disorder suppresses the 0- transition in altermagnetic systems.
This paper demonstrates through Ginzburg-Landau analysis and self-consistent mean-field calculations that twisted bilayer cuprates can host a stable, topologically nontrivial chiral superconducting state characterized by a multicomponent order parameter combining -wave and -wave pairings with relative phases distinct from $0$ or .
Using variational Monte Carlo simulations on a two-band - model motivated by LaNiO, the study reveals that a robust orbital-selective -wave superconducting state emerges exclusively from the itinerant orbital, while the quasi-localized orbital suppresses superconductivity by forming competing local bound states, suggesting that enhancing requires minimizing the involvement of localized orbitals.
Using angle-resolved photoemission spectroscopy on superconducting Ruddlesden-Popper bilayer nickelate films, researchers revealed an orbital-dependent three-dimensional electronic structure where the band exhibits finite dispersion and a large superconducting gap, highlighting the critical role of three-dimensionality and strong electron correlations in the superconducting mechanism.
This study demonstrates that coupling a one-dimensional superconducting layer to a metallic reservoir significantly enhances superconducting properties by boosting effective pairing strength and mediating long-range pair correlations, thereby enabling the system to approach long-range superconducting order.