2833 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 derives and reviews the second-quantized Coulomb interaction Hamiltonian for atomically thin semiconductors within a quantum-kinetic framework, linking *ab initio* screening methods to effective-mass models to elucidate the roles of Umklapp processes, local-field effects, and density-independent scattering in the exciton energy landscape.
This paper investigates how structural disorder affects exciton propagation in a quantum dot chain with a side-coupled defect, establishing a criterion for the localized-to-delocalized phase transition and demonstrating that dynamic localization under pulsed excitation aligns with the system's stationary state properties.
This paper proposes and demonstrates the existence of novel interaction-enabled two- and three-fold exceptional points in bosonic and fermionic systems, which are topologically protected by various symmetries and emerge only when interactions are present, leading to observable qualitative changes in loss rates and extending beyond conventional non-Hermitian topological classifications.
This study develops a voltage-dependent Hamiltonian framework for a strongly coupled nanoelectromechanical resonator that explains experimental phenomena like avoided crossings and tunable frequency combs, while mapping their underlying dynamical transitions, bifurcations, and coherence properties to enable the engineering of highly tunable and functional nanodevices.
This paper introduces a real-space composite boson framework for fractional Chern insulators that utilizes a radially ordered, maximally localized basis to establish a unified criterion for stable topological phases, thereby bridging continuum and lattice paradigms and providing an intuitive guide for designing correlated topological states.
This paper investigates the propagation of short pulses through a CuO crystal containing Rydberg excitons using density matrix formalism and FDTD methods, revealing how the Rydberg blockade induces saturation effects, power-dependent dispersion, and coherent population oscillations that align with recent experimental pump-probe results.
This paper demonstrates that a newly introduced rotationally invariant observable, , serves as a robust and universal signature of the chiral anomaly in lattice Weyl fermions by exhibiting a characteristic dependence and scaling with the angle between electric and magnetic fields, thereby revealing an emergent SO(3) symmetry despite the underlying lack of Lorentz and rotational invariance.
This study demonstrates that precise control over the core and shell dimensions of Au-catalyzed Ge/Si core/shell nanowires enables effective strain engineering, resulting in a record-high hole mobility of 25,500 cmVs that underscores their potential as high-fidelity spin qubit hosts for scalable quantum technologies.
This paper presents a scalable, CMOS-compatible non-superconducting tunnel junction technology based on TiW alloy and AlOx barriers, which overcomes the integration limitations of previous methods and demonstrates robust performance in cryogenic applications down to 20 mK.
This paper numerically demonstrates a dynamically reconfigurable topological laser in a bilayer photonic crystal at telecom wavelengths, where Thouless pumping between competing periodic potentials creates a robust, tunable lasing mode enabled by MEMS or phase-change materials.