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 introduces complex Wannier centers derived from nonunitary Wilson loops in non-Hermitian systems to explain directional drift in Wannier functions, establishes symmetry-protected bulk-boundary correspondences linking these centers to filling anomalies and edge mode gain/loss, and proposes a photonic waveguide implementation for experimental verification.
This study utilizes monochromated aberration-corrected scanning transmission electron microscopy (STEM) combined with electron energy-loss spectroscopy (EELS) and theoretical modeling to directly observe and characterize infrared plasmonic Fano antiresonances in individual nanofabricated disk-rod dimers, demonstrating the technique's ability to resolve nanoscale plasmonic responses previously accessible only to higher-resolution infrared spectroscopies.
This paper introduces a robust discrete formulation for computing the three-dimensional winding number of smooth maps to using -gaps, offering both a practical unmodified flux for fine grids and a modified flux that strictly guarantees integer quantization even in the presence of degeneracies.
This paper reveals that gain and loss in non-Hermitian Floquet systems induce multiple topological phase transitions between distinct insulating phases with unique hybrid skin-topological boundary modes, as well as spectral singularities leading to anomalous transmissions, phenomena that are detectable in coupled ring resonator settings.
This paper provides a geometric interpretation of the Schrieffer--Wolff transformation as a local coordinate chart near degeneracy submanifolds in Hermitian matrix space, establishing a "distance theorem" that links eigenvalue standard deviation to the distance from degeneracy and applying these insights to the protection of Weyl points and the geometry of degeneracy submanifolds.
This paper reports that in confined superfluid He, remnant vortices form with a density determined by channel size rather than quench time, challenging standard Kibble-Zurek predictions by proposing that confinement prevents vortex reconnection, thereby fixing the defect separation to the wall spacing.
This paper demonstrates a quantum advantage in strong coin flipping—a cryptographic primitive for distrustful parties—by experimentally implementing a protocol using a deterministic quantum dot single-photon source that outperforms both classical methods and previous faint-laser pulse implementations.
This paper presents an automated framework that combines U-Net-based charge transition detection, Hough transform analysis, and clustering to define virtual gates and identify the single-electron regime in semiconductor spin qubits, thereby advancing scalable control for large-scale quantum devices.
This paper proposes a novel approach to quantum state tomography that reconstructs the state of an open quantum system by measuring transport currents and their correlations, establishing an exact link between these observables and the system's Lindbladian dynamics to enable state certification and entanglement detection without requiring isolation from environmental dissipation.
This paper reports the development of flexible radiofrequency transistors based on aligned carbon nanotube arrays that utilize electro-thermal co-design to achieve cutoff frequencies exceeding 100 GHz, thereby meeting the high-frequency, low-power, and flexibility requirements for 6G human-centric applications.