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 systematically derived energy-transfer-dependent effective electron-electron interactions in intermediate-to-strong-coupling superconductors give rise to secondary, long-lived collective phase and amplitude excitations below the quasiparticle continuum, which exhibit lattice-independent behavior and eigenoperator structures analogous to Hydrogen wave functions.
Electrical resistivity measurements on UTe under high magnetic fields reveal that boosted quantum-critical magnetic fluctuations at the metamagnetic transition coincide with the stabilization of superconductivity beyond 40 T, suggesting these fluctuations drive the mechanism of this unconventional superconducting phase.
This paper establishes a new thermodynamic criterion for identifying the vortex lattice phase in type-II superconductors by discovering a dynamic magnetostrictive effect, where an alternating magnetic field induces a geometry oscillation proportional to vortex density, detectable via a piezoelectric transducer.
This paper proposes a field-theoretical framework, analogous to the BEC-BCS crossover in ultracold atoms, to explain the hadron-quark crossover in dense matter by demonstrating that a tripling fluctuation effect naturally reproduces key quarkyonic features such as the speed of sound peak and baryon momentum-shell structure.
This review paper argues that phonon-mediated high-temperature superconductivity can bypass conventional temperature limits by utilizing electron-phonon couplings that modulate electron hopping (Peierls/SSH models) rather than density, a mechanism shown via quantum Monte Carlo simulations to generate light bipolarons capable of forming robust -wave superconductors with transition temperatures significantly exceeding the standard bound.
This paper proposes that analyzing the distinct local density of states patterns generated by two magnetic impurities in scanning tunneling microscopy experiments can effectively distinguish between conventional on-site -wave and time-reversal symmetry breaking -wave pairing symmetries in kagome superconductors, thereby resolving ambiguities associated with sublattice interference and charge-density-wave entanglement.
This paper establishes a universal Bogoliubov sum rule that determines the zero-temperature Knight shift tensor in noncentrosymmetric superconductors solely by the Fermi-surface average of the spin-locking direction, defining a "Knight-shift ellipsoid" that classifies pairing symmetries and successfully explains experimental NMR data in KCrAs as evidence for a common spin-locking axis and finite-momentum ferromagnetic spin fluctuations.
This paper demonstrates a new approach to achieving high-efficiency Josephson diodes by utilizing the supercurrent spin-Hall effect in Nb-Pt-Nb nanopillar junctions to induce non-reciprocity, resulting in field-tunable efficiencies up to 17% at temperatures above liquid helium.
This study employs anisotropic Migdal-Eliashberg theory combined with *ab initio* calculations to demonstrate that hexagonal HfRuAs is a strong-coupling, phonon-mediated superconductor characterized by a single anisotropic -wave gap and a critical temperature consistent with experimental observations.
This study reports the discovery of significant electron magnetochiral anisotropy in centrosymmetric 2M-WS2, revealing a direct link between nonlinear chiral transport, anomalous Nernst response, and the Fermi liquid-to-strange metal transition driven by nontrivial quantum geometry and orbital magnetic moments.