828 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 a finite-momentum pair-density-wave (PDW) state in magic-angle twisted bilayer graphene reconciles observed tunneling signatures with low-temperature superfluid stiffness suppression by generating Bogoliubov Fermi surfaces, thereby establishing a direct experimental link between zero-bias conductance and phase rigidity.
This paper theoretically demonstrates that graphene Corbino disks with a sufficient radius ratio exhibit a tunable crossover from standard Josephson tunneling to graphene-specific multimode Dirac-Josephson tunneling and finally to the ballistic Josephson effect, depending on the electrochemical potential and the spatial profile of the electrostatic barrier.
This paper presents an exactly solvable model demonstrating that Fermi arcs in underdoped cuprates not only produce a superconducting dome consistent with experiments but also analytically suppress the transition temperature and enhance the gap-to- ratio through many-body effects beyond simple Fermi surface reduction.
Using high-flux synchrotron X-ray diffraction, researchers discovered a previously overlooked polar, checkerboard charge order in bilayer nickelate LaNiO that breaks glide-mirror symmetry and competes with its high-temperature superconducting phase, offering new insights into the mechanism of pressure-induced superconductivity.
This study utilizes time-dependent Ginzburg-Landau simulations of asymmetric Nb/V/Ta trilayer heterostructures to demonstrate that the superconducting diode effect arises from the interplay of Lorentz forces and asymmetric vortex dynamics, which can be significantly modulated or entirely suppressed by altering the layer stacking order.
This paper analyzes electric current fluctuations in a minimal Kitaev chain using the differential effective charge, revealing that specific charge values ( and ) serve as unique signatures of poor man's Majorana states and their nonequilibrium dynamics across different bias voltage regimes.
Using the quantum color string model, this paper reveals that the microscopic origin of ubiquitous plaquettes in cuprate stripe LDOS is linked to spinon singlet pairs, while also identifying a particle-hole symmetry breaking effect that causes a shift in longer stripes.
Using a non-perturbative Monte Carlo approach, this study demonstrates that altermagnetism in a two-dimensional -wave superconductor stabilizes a pair density wave state without external magnetic fields, enabling its survival at finite temperatures with robust phase coherence.
This paper proposes a mechanism for a strong many-body Josephson diode effect in an interacting nanoscale SQUID, where nonreciprocity arises from branch selection across the 0- phase boundary and is significantly enhanced by a nonlocal Cooper-pair tunneling channel that creates a robust "diode band" in parameter space.
This paper theoretically demonstrates that the interplay of quantum confinement and proximity effects in metallic bilayer heterostructures can significantly enhance the critical temperature and induce superconductivity in materials that are non-superconducting or weakly superconducting in their bulk forms.