845 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.
By incorporating anharmonic effects, this study reconstructs the accurate temperature-pressure phase diagram of the Ca-H system, revealing that CaH structures are stable at 0 K while the superconducting CaH phase requires temperatures above 500 K to achieve thermodynamic stability.
Using soft x-ray absorption spectroscopy, this study reveals that infinite-layer nickelate thin films do not achieve the assumed pure configuration even when maximally reduced, as quantitative analysis shows a persistent nickel hole count of 1.35 alongside oxygen holes, indicating a complex interplay of self-doping and oxygen non-stoichiometry.
This paper demonstrates that in low-dimensional Josephson systems, superconducting phase fluctuations cause the Josephson diode effect, phase coherence, and the superconducting gap to vanish at three distinct temperatures () rather than simultaneously, with the separation of these scales being strongly influenced by disorder and carrier density.
This paper proposes that high-temperature superconductivity arises generically from "memory-dominated" quantum criticality, where a finite density of slow relaxation modes enhances electronic pairing through algebraic rather than logarithmic scaling, thereby naturally explaining phenomena like superconducting domes and Uemura scaling without relying on material-specific bosonic glue.
This paper introduces a non-destructive frequency-domain quasiparticle spectroscopy technique using precision resonators to identify low-energy excitations, such as two-level systems and Yu-Shiba-Rusinov states, in tantalum films on sapphire substrates, thereby linking these microscopic defects to reduced internal quality factors in superconducting circuits.
This paper demonstrates that the nuclear-electronic orbital density functional theory (NEO-DFT) method accurately and efficiently captures essential nuclear quantum effects to predict the structures and phase transition pressures of high-pressure superconducting hydrides and ice, offering a scalable alternative to more expensive computational approaches.
This paper extends a projective circuit quantisation approach to incorporate superconducting Higgs modes by deriving and numerically validating analytical results for the gap dynamics' mass, spring constant, and frequency, while also computing anharmonic corrections for small superconducting islands.
This paper investigates the inductive coupling between a quantum LC resonator and a graphene-based Josephson junction, revealing that the system's current-phase relation can exhibit spontaneous time-reversal symmetry breaking and predicting the low-energy spectrum of hybridized light-matter excitations.
This paper presents a semi-analytical variational ansatz using coherent-state phonon clouds to accurately describe the Holstein polaron's ground-state energy and effective mass across both weak and strong electron-phonon coupling regimes in one and two dimensions.
This paper demonstrates that a Zeeman magnetic field can stabilize interband pairing in two-band superconductors with spin-orbit coupling, driving a transition from a conventional intraband state to a gapless, interband-dominated mixing state characterized by anomalous thermodynamic properties like a linear specific heat.