849 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 investigates a dual-reflection interface in the transverse field Ising chain that exhibits a discrete symmetry and hosts robust Majorana strong zero modes, which are explicitly constructed via Jordan-Wigner transformation and proposed for realization on digital quantum hardware.
This paper reveals that pure Pair-Density-Wave (PDW) superconductors exhibit a large region of intrinsic instability characterized by negative superfluid density, while the remaining stable regime displays unique, experimentally observable signatures that suggest significant challenges for the formation of stable, finite-temperature PDW states.
This paper generalizes previous findings on resonating valence bond ground states by analytically solving the singly hole-doped Hubbard model on a quasi-1D tetrahedron chain, demonstrating that the system possesses exponentially degenerate partial RVB states where each tetrahedron hosts a spin- monomer and a spin-$0$ dimer.
Motivated by recent scanning tunneling experiments, this paper proposes a microscopic theory identifying an intra-valley, finite-momentum Kekulé pair-density wave (PDW) as the mechanism for unconventional superconductivity in twisted magic-angle bilayer graphene, a state characterized by spontaneous symmetry breaking, triplet pairing, and a BEC-like regime consistent with experimental signatures.
Using large-scale quantum Monte Carlo and dynamical mean-field theory on an 11-band Hubbard model, this study reveals that LaNiO thin films exhibit significantly weakened out-of-plane superexchange couplings and reduced charge transfer gaps compared to their high-pressure bulk counterparts, alongside a pronounced particle-hole asymmetry in orbital distributions.
This paper clarifies subtle aspects of coherent-state path integrals in quantum thermodynamics, demonstrating that when properly handled in the continuum limit, they yield results consistent with the canonical Hamiltonian approach across various paradigmatic bosonic and fermionic systems.
This study investigates how mass imbalance influences the formation of stable two- and three-body clusters in a one-dimensional Fermi gas with coexisting - and -wave interactions, revealing that while vacuum three-body states are always more deeply bound than two-body ones, moderate interactions in the medium favor a Cooper trimer phase over pairing, accompanied by competition among different trimer configurations.
This paper proposes and numerically validates, via DMRG simulations of a bilayer Hubbard model, that doping a featureless Mott insulator with $SU(4)$ symmetry provides a natural platform for realizing a primary charge- superconducting phase at zero temperature, distinct from the conventional charge- state found in its $Sp(4)$ counterpart.
This paper presents a lightweight Reed-Muller RM(1,3) encoder implemented in SFQ logic to mitigate bit errors during data transmission from superconducting electronics to CMOS circuits, demonstrating significant improvements in error-free transmission probability and defect tolerance under process parameter variations.
This paper investigates the analytical properties and presents an efficient Galerkin-based numerical solution using B-splines for the Bardeen-Cooper-Schrieffer equation describing unconventional superconductors with long-range power-law interactions on a -dimensional lattice, with specific results demonstrated for a nodal superconductor on a two-dimensional square lattice.