2798 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 MIRAPA, a mid-infrared-assisted phonon amplification technique in few-layer MoS₂ that achieves efficient, selective, and stable room-temperature phonon amplification exceeding 80% with significantly lower power requirements than conventional optical methods, enabling sensitive mid-infrared detection and paving the way for phonon-based coherent devices.
This paper demonstrates through a counting argument that translation symmetry enforces long-range entanglement in mixed states, specifically showing that the strong-to-weak spontaneous symmetry breaking fixed point cannot be represented as a mixture of short-range entangled states despite the existence of symmetric short-range entangled eigenstates.
The authors experimentally demonstrate a "Ferrotronic" device that utilizes a ferroelectric substrate with engineered periodic domains to modulate graphene's surface potential, thereby modifying its band structure to create energy mini-bands and open a band gap.
This paper constructs four-dimensional two-band topological semimetals, termed "Hopf semimetals," which utilize unstable homotopy to host nodal lines with Hopf flux and exhibit unique gapless surface and corner states, including Fermi arcs, drumhead states, and Fermi surfaces.
This study demonstrates that bulk-boundary correspondence holds for non-conserved spin currents in BiSb topological insulators by showing that experimental measurements of spin Hall conductivity align precisely with theoretical predictions based solely on bulk electronic band structures.
This paper demonstrates that while dissipation generally disrupts edge mode dynamics in the monitored Su-Schrieffer-Heeger model, selectively protecting the chain's edges allows for the recovery of unitary-like features, underscoring the critical influence of spatial dissipation patterns on these quantum systems.
This paper develops a theory of edge excitations in two-dimensional fractonic systems, revealing that the boundary hosts two distinct gapless modes and that bulk braiding phases are quantized only for specific charge-dipole or dipole-dipole interactions, while local edge tunneling acts as a relevant perturbation capable of deforming the edge.
This study demonstrates efficient charge-to-spin conversion in a hybrid heterostructure of atomically thin bismuth sandwiched between silicon carbide and epitaxial graphene, characterized by strong spin-orbit coupling and a significantly enhanced in-plane spin torque compared to control samples.
This paper employs a slave-spin representation combined with mean-field theory and random phase approximation fluctuations to analyze the phase diagram, spectral properties, Josephson current, and microwave response of a strongly interacting quantum dot coupled to superconducting leads, successfully capturing the competition between Kondo physics and superconductivity while addressing the limitations of mean-field theory in the doublet regime.
This paper experimentally demonstrates that charge transport in engineered quantum Hall samples with counter-propagating edge states transitions from a ballistic regime (when channel numbers are unequal) to a critical diffusive regime (when channel numbers are equal) by utilizing tunable Landauer reservoirs to control charge equilibration.