2446 papers
Explore the fascinating intersection where quantum materials meet the complexity of everyday environments in the Cond-Mat — Mes-Hall section. This field investigates how tiny particles behave when caught between the orderly world of single atoms and the chaotic nature of bulk matter, revealing the hidden rules that govern electricity, magnetism, and heat in novel substances.
Gist.Science brings these cutting-edge discoveries to you directly from arXiv, the leading repository for physics preprints. We process every new submission in this category as soon as it appears, offering both straightforward, plain-language explanations and deep technical summaries to help researchers and curious minds alike grasp the latest breakthroughs without getting lost in dense equations.
Below are the most recent papers in this dynamic area of condensed matter physics, ready for you to explore.
This paper reports the experimental observation of an unpaired third-order exceptional point in a non-Hermitian three-band system, demonstrating how non-Abelian braid topology circumvents traditional no-go theorems to enable exotic monopole-like degeneracies.
This paper predicts a novel "topological Abrikosov lattice" at the interface between a type-II superconductor and a Chern insulator, where a Chern-Simons-induced topological mass generates vortices with fractional charge that form unique four-vortex bound clusters.
This paper develops a comprehensive quantum optical framework for surface lattice resonances in nanoparticle arrays, deriving microscopic input-output relations to model their interactions with quantum emitters and nonlinear phenomena without relying on phenomenological approximations.
This paper classifies gapped and gapless non-Hermitian band structures on two-dimensional nonorientable manifolds, revealing how these spaces enable the exploration of braid group theory, the violation of fermion doubling, and non-Abelian charge inversion of exceptional points, all of which manifest as observable bulk Fermi arc degeneracies.
This paper demonstrates that vacancy defects in a two-dimensional geometrically frustrated magnet, such as the triangular-lattice antiferromagnetic Ising model, induce a specific-heat peak at a characteristic temperature determined by the defect concentration, arising from the thermal relaxation of entropy-constrained bulk spins.
Far-infrared magnetospectroscopy of HgTe quantum wells reveals that the anticrossing of zero-mode Landau levels is driven by intrinsic many-particle electron-electron interactions rather than single-particle inversion asymmetries, a mechanism applicable to all crystallographic orientations.
This paper reveals that two-dimensional -wave altermagnets undergo a Kosterlitz-Thouless-type phase transition from a marginal metal to an insulator driven by disorder, a process characterized by vortex-antivortex pairs in local spin magnetization and the gradual suppression of spin anisotropy.
This paper investigates a bosonic avalanche laser driven by a dissipative three-mode mixing process, demonstrating through both semi-classical analysis and exact Monte-Carlo simulations that the system functions as an excitable quantum many-body model capable of converting random inputs into quasi-periodic pulses even at low photon numbers, with potential applications in superconducting quantum circuits as number-resolved microwave photon detectors.
This paper develops a self-consistent Hartree-Fock quantum kinetic theory for two-dimensional electron gases that reveals how the exchange-Coulomb potential renormalizes Fermi velocity, drives long-wavelength instabilities and charge-imbalance patterns in coupled layers, and substantially enhances Coulomb drag resistivity in dilute GaAs double wells, thereby resolving discrepancies with classical models and matching experimental observations.
This paper proposes a scheme to realize the layer Hall effect in ferromagnetic topological insulators by coupling them with -wave altermagnets, demonstrating that antiparallel Néel vectors induce a vanishing net Hall conductance while parallel vectors yield a quantized Chern insulating state.