815 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.
Using the density-matrix renormalization group method, this study reveals that hole-doping a spin-gapped three-leg ladder near 1/3 filling induces power-law pair correlations, offering insights into the superconducting mechanisms of trilayer nickelates.
This paper demonstrates that coupling a magnetic Josephson junction to a dissipative environment induces spin-dependent broadening of Andreev levels, which shifts the transition to higher magnetic fields and enables its control via the relative angle between the external field and reservoir magnetization, thereby establishing non-Hermiticity as a novel resource for engineering superconducting current-phase relations.
This paper reviews recent experimental and theoretical progress in Ruddlesden-Popper nickelates, with a specific focus on thin films, to explore the mechanisms behind high-temperature superconductivity in these correlated electron systems following the discovery of superconductivity in La3Ni2O7 and La4Ni3O10 under high pressure and in ultra-thin films at ambient pressure.
This paper demonstrates that a three-dimensional Kondo lattice model with non-Abelian SU(2) order parameters supports a Bose metal phase characterized by electron-Majorana bound states and a resistivity scaling, which emerges between uniform superconducting and pair-density-wave phases due to anomalously strong fluctuations driven by a vanishing superconducting stiffness and an enlarged order-parameter manifold.
Using variational exact diagonalization on the Hubbard-Holstein model, this paper demonstrates that two-electron angle-resolved photoemission spectroscopy (2eARPES) can identify preformed electron pairs through distinct energy and momentum signatures, thereby confirming their existence and distinguishing between coherent superconducting and incoherent pairing states.
This paper presents a theoretical framework demonstrating that altermagnet-superconductor heterostructures, particularly when augmented with Rashba spin-orbit coupling, serve as a versatile platform for inducing odd-parity triplet pairing and engineering both weak and strong topological superconducting phases with edge-localized modes.
This study demonstrates that under-layer engineering in Ti40V60 alloy thin films effectively tunes superconductivity by modulating charge carrier density and introducing moderate disorder to suppress spin-fluctuation-induced pair breaking, thereby enhancing the critical temperature without significant proximity effects.
This paper proposes that analyzing two-photon coincidence statistics in light transmitted through a cavity-embedded superconductor, specifically 2H-NbSe2, provides a definitive diagnostic signature for the ultrastrong coupling regime via the formation of hybrid photon-matter dark-cavity states and single-photon-level nonlinearities.
This paper presents methods to mitigate the pressure cycling sensitivity of turn-to-turn contact resistivity in resistively insulated REBCO coils by using conductive fillers, solder coatings, or controlled oxidation of stainless steel interlayers, thereby enabling the stable control of resistivity within a safe range for both short samples and a 6 double-pancake test coil.
This paper presents a digital predistortion framework using IIR and FIR filters to characterize and compensate for flux-control signal distortions in superconducting qubits, thereby enabling automated rapid calibration and significantly improving gate fidelity on quantum processing units.