833 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 presents simulations of a proposed device that achieves sub-nanosecond, single-shot readout of a fluxonium qubit by utilizing the transmission or reflection of a ballistic fluxon in a dual long Josephson junction circuit, offering a fast, microwave-free alternative to standard cQED methods with negligible backaction.
This paper demonstrates that the topological phase transition and emergence of Majorana zero modes in the 1D quantum spin model can be identified through local spin observables, edge susceptibility, and bipartite fluctuations, establishing a robust correspondence between resonating valence bond physics and p-wave superconductivity.
This paper reports the on-chip realization of a Dicke-type magnon polariton system in the ultrastrong coupling regime using spatially separated nanomagnets, which successfully suppresses detrimental self-interaction terms to enable the observation of critical quantum phenomena like the Bloch-Siegert shift.
This paper develops a linear response theory for topological superconductor/ferromagnetic insulator hybrids, revealing that spin-momentum locking drives a hybridization between magnons and the superconducting phase mode to create composite excitations, while the amplitude mode remains decoupled, offering a new mechanism for spin-signal interconversion in superconducting spintronics.
This paper reports the first successful demonstration of a monolithic "System-on-a-Chip" fabrication process that integrates soft X-ray transition edge sensors (TES) with microwave SQUID multiplexers on a single silicon wafer using lithographically defined interconnects to maximize focal plane fill fraction for large-format spectrometers.
Using high-resolution scanning tunneling microscopy on ultra-pure CsV3Sb5, researchers discovered a switchable chiral 2x2 pair density wave whose pairing modulations can be controlled by magnetic fields and are selectively suppressed by nonmagnetic impurities, providing definitive evidence for this exotic superconducting state.
This paper theoretically demonstrates that in nodal-line semimetals like Pd-doped CaAgP, superconductivity driven by drumhead surface states naturally favors a surface-localized chiral -wave pairing symmetry, which strongly enhances the order parameter at the outermost layers while gapping out the surface states.
This study employs Monte Carlo simulations to demonstrate that in highly anisotropic layered XY models, topological scaling signatures characteristic of the 2D BKT transition persist up to a diverging crossover length, delaying the emergence of genuine 3D critical behavior to exceedingly large system sizes and suggesting that observed experimental signatures in layered superconductors may be dominated by quasi-2D effects.
This study combines inelastic neutron scattering experiments with density functional theory calculations to map the complete phonon dispersion of LiFeAs, revealing good agreement between theory and experiment, a small electron-phonon coupling constant, and no evidence of nematic instability.
This paper proposes that thermovoltage, Seebeck coefficient, and various noise measurements (including the novel noise) can reliably distinguish between and pairing symmetries in iron-based superconductors by revealing distinct qualitative features such as twin-peak versus single-peak structures and sign reversals.