745 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 that incoherent electronic spectra across diverse strongly correlated materials arise from self-generated dynamical disorder and collapse onto a single universal curve described by a parabolic cylinder function, revealing a marginal dynamical regime where microscopic details become irrelevant at low energies.
This paper proposes a superconducting spatiotemporal metasurface that achieves one-way nonreciprocal absorption through a classical analogue of photon blockade, where forward waves are resonantly absorbed via harmonic conversion while backward waves transmit freely, offering a promising pathway for compact quantum information devices.
This paper introduces a cryogenic widefield NV-diamond microscope that enables rapid, micrometer-scale imaging of magnetic flux trapping in superconducting devices, revealing critical vortex expulsion behaviors in Nb thin films and offering a high-throughput tool for improving the reliability of scalable superconducting electronics.
This paper demonstrates that applying commensurable two-tone Floquet drives to fluxonium qubits enhances coherence by creating tunable dynamical sweet spots with wider dephasing time peaks and enables improved phase gate performance compared to single-tone drives.
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.
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 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.