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 study employs a variational Gutzwiller wavefunction approach on an 8-band model to reveal that magic-angle twisted bilayer graphene exhibits a dome-shaped Fermi liquid phase separating weakly and strongly correlated superconducting regimes, with the latter characterized by a nematic, nodal-gap state stabilized by interaction-driven gap reconstruction and distinct from conventional Mott insulators.
This study utilizes Ni -edge resonant inelastic X-ray scattering to reveal that while trilayer LaNiO exhibits collective spin excitations with a bandwidth comparable to bilayer nickelates, its substantially suppressed spectral weight indicates weaker electronic correlations and a distinct three-dimensional, multi-orbital character that differentiates it from its bilayer counterparts.
The paper reports the discovery of a new quasi one-dimensional superconductor, PtPb3Bi, which exhibits a fully gapped s-wave superconducting state below 3.01 K, coexisting with a charge density wave transition and nontrivial band topology, making it a promising candidate for topological superconductivity.
This paper introduces a parameter-free, two-channel Allen-Dynes framework that unifies phonon and spin-fluctuation mechanisms to achieve highly accurate blind predictions of superconducting critical temperatures across five orders of magnitude, while simultaneously establishing a quantum-metric no-go result that limits the universality of geometric superfluid weight as a predictor.
This study utilizes Nuclear-Electronic Orbital DFT to demonstrate that while nuclear quantum effects significantly stiffen S-H bonds and alter phonon properties in high-pressure HS, their direct impact on the electronic structure is minimal, indicating that the observed isotope effect on the critical temperature arises primarily from phonon changes rather than electronic modifications.
Using vector magnetic-field scanning tunneling microscopy, this study provides direct spectroscopic evidence of topological surface states in the spin-triplet superconductor UTe2 by observing the selective magnetic-field suppression of in-gap states on Te sites, which aligns with theoretical predictions of Zeeman-coupled TSS.
This paper identifies a non-equilibrium state induced by current bias in a Rashba system as the microscopic origin of the Josephson diode effect, demonstrating that an in-plane magnetic field perpendicular to the current creates an asymmetric Josephson coupling whose magnitude and sign can be optimized by tuning the electrode distance.
This paper investigates tungsten silicide fluxonium qubits and resonators fabricated from quasi-two-dimensional amorphous films, revealing that energy loss is primarily driven by localized quasiparticles trapped in spatial variations of the superconducting gap, with loss increasing alongside the level of disorder.
This review examines how recent advances in materials science, device characterization, and nanofabrication are overcoming critical challenges in Josephson junction reproducibility, dissipation, and scalability to enable the transition from laboratory components to industrial-scale superconducting quantum processors.
This study reveals that while hole doping via Ti substitution in CsVTiSb preserves conventional superconductivity across two distinct domes, it fundamentally alters charge correlations by rapidly suppressing competing and superstructures in the first dome and eliminating detectable charge order entirely in the second, highlighting key differences from Sn doping on Sb sites.