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 presents an excitonic theory and numerical simulations demonstrating that in two-dimensional semiconductors at elevated densities, excitonic Rabi oscillations are significantly weakened in Coulomb-dominated regimes and nearly suppressed under linear excitation compared to circular excitation.
This study identifies MoOCl2 as the first naturally occurring hyperbolic van der Waals material, demonstrating that its highly anisotropic electron gas drives unique Fano line shapes in angle-resolved polarized Raman spectra, thereby establishing it as a model system for investigating tunable electron-phonon coupling in hyperbolic materials.
This paper introduces Generalized Equilibrium Propagation and an analytical framework based on Kirchhoff's laws to enable efficient, local gradient calculation for training analog resistor networks using only output-layer information, thereby overcoming the energy and locality constraints of traditional digital machine learning.
This study utilizes nitrogen-vacancy center-based quantum dephasometry to non-invasively probe and characterize the low-frequency near-field electromagnetic fluctuations and superparamagnetic spin dynamics of a nanoscale CoFeB layer, revealing unconventional temperature-dependent dephasing behavior that provides critical insights for hybrid quantum spintronic applications.
This paper extends the concept of dynamical metastability from noninteracting to interacting driven-dissipative magnetic systems, demonstrating that magnetic heterostructures and multilayers support robust topological edge modes, nonlinear phenomena like size-dependent spin dipping, and complex behaviors such as multistability and limit cycles within both quantum and classical frameworks.
This paper proposes a hybrid cavity magnonic system with a tunable beamsplitter to achieve controllable time-domain two-magnon interference, analogous to the Hong-Ou-Mandel effect, which generates maximally entangled N00N states for applications in quantum metrology and computing.
This paper reports a new mechanism for generating magnetic spontaneous oscillations via parametric pumping in a yttrium iron garnet delay line, where four-wave mixing converts a pump tone into phase-autonomous magnon modes that enable ultrasharp, tunable spin wave dynamics, phase-locking capabilities, and high-gain magnonic amplification.
This study demonstrates that single-crystalline copper thin films can exhibit ballistic transport in nanoscale devices below 85 K, offering a scalable solution for low-loss signal transmission and high-quality interconnects in semiconductor technology.
This paper proposes a unified framework for describing fractional quantum Hall systems and fractional Chern insulators by extending the concept of coherent states to Chern bands via "coherent-like states," enabling the construction of a localized-basis Hamiltonian that exhibits topological degeneracy and zero-energy ground states across both systems.
This paper presents a quantitative model combining analytical and finite element approaches to analyze excess carrier diffusion and recombination in STEM-EBIC experiments on semiconductor nanostructures, successfully demonstrating its ability to precisely determine the bulk diffusion length of SrTi0.995Nb0.005O3.