844 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 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 proposes that heterosheared bilayer graphene hosts high-temperature superconductivity driven by 1D moiré flat bands, where valley polarization enables Cooper pair condensation by spatially separating electrons of opposite spins to minimize Coulomb repulsion.
This study demonstrates that epitaxial growth of monolayer NbSe on graphite naturally forms moir{é} superlattices where interlayer coupling between graphite states and NbSe suppresses charge-density wave enhancement, offering a new pathway for controlling collective states in 2D materials without manual assembly.
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.
This paper demonstrates that density-assisted hopping in repulsive Hubbard models on dimerized geometries, such as bilayers and ladders, induces effective attractive interactions in the bonding band that overcome onsite repulsion to drive a Berezinskii-Kosterlitz-Thouless transition into a complex, filling-dependent superconducting phase.
This study demonstrates that the charge-density wave in the kagome metal KVSb is driven by momentum-dependent electron-phonon coupling, evidenced by the softening of phonons to zero energy at the ordering vector and their distinct in-plane anisotropy, thereby refuting the notion of a soft-phonon-free CDW mechanism in this material.
This paper proposes that leveraging negative capacitance in engineered structures can invert the natural repulsive Coulomb interaction between electrons into an attractive force, thereby enabling new regimes of Coulomb engineering that could stabilize unconventional correlated phases such as superconductivity.
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.