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 proposes that in TiSe, chiral charge-density-wave quantum criticality drives a non-BCS, finite-momentum inter-orbital superconducting state by enabling symmetry-forbidden mode mixing that enhances pairing interactions between small - and -orbital Fermi pockets, resulting in an orbital-selective -wave superconducting dome.
This paper develops a microscopic theory using an extended Keldysh-Nambu quasiclassical formalism to demonstrate how branch population imbalance in d-wave superconductors generates a light-induced dc current and static magnetization via the inverse Faraday effect.
This study demonstrates that diffusion bonding bronze pieces followed by simultaneous NbSn formation via Nb vapor deposition creates continuous superconducting films with seamless supercurrent flow across joints, offering a promising method for joining NbSn materials in magnet and RF applications.
This paper investigates topological superconductivity and Majorana zero modes in the LaAlO/SrTiO interface using a realistic multiband model, revealing that while a finite out-of-plane magnetic field is required for the topological transition in 2D systems, lateral confinement relaxes this constraint but introduces challenges for observing Majorana states in nanowires due to the exceptionally long localization lengths of orbital-dominated subbands.
This study investigates the crossover from homogeneous to percolative behavior in two-dimensional granular aluminum films by analyzing temperature and magnetic field dependencies of sheet resistance, revealing an anomalous temperature-dependent diffusion constant and a scaling law for magnetoconductance that characterize the percolative transition.
This paper employs a renormalized Ginzburg-Landau theory within the Keldysh functional formalism to demonstrate that while electron interactions suppress the transition temperature and tricritical point in a dirty two-dimensional superconductor with Rashba spin-orbit coupling, the superconducting diode effect remains robust in the high-transition-temperature regime.
This paper demonstrates that magnetic noise spectroscopy using a proximate single spin qubit serves as a powerful, non-invasive probe to quantitatively characterize superconducting dynamics in a magnetic field, successfully distinguishing between critical pairing fluctuations and various vortex phases while extracting key physical parameters like oscillation frequencies and diffusivity.
This paper reports the successful fabrication of Josephson junctions using epitaxial Al/InAs/(Ga,Fe)Sb heterostructures, which exhibit gate-tunable supercurrents and unconventional magnetic interference patterns that confirm the realization of a highly tunable platform for exploring the interplay between superconductivity and ferromagnetism.
This study identifies hydrogen tunneling as the microscopic origin of two-level systems in amorphous NbO and TaO, explaining their detrimental impact on superconducting qubit coherence and the experimentally observed higher loss in niobium oxide compared to tantalum oxide.
This paper proposes a "Dayem loop qubit" design utilizing two parallel superconducting nanowires, demonstrating that magnetic-field-induced quantum interference restores the necessary cubic nonlinearity to create a functional transmon qubit even when the individual nanowires exhibit nearly linear current-phase relationships.