3224 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 argues that quantum confinement in semiconductor heterostructures is not solely determined by heterobarriers but is significantly influenced by effective mass variations, which can lead to carrier localization in regions of higher effective mass and enable distinct spatial distributions for different subbands, offering new possibilities for devices like quantum cascade lasers.
This paper demonstrates that while frontier LLM agents can autonomously perform complex scanning tunneling microscopy tip conditioning after brief human training, their effectiveness is ultimately constrained by unmodeled experimental states and uncertain action outcomes, highlighting the need for future autonomous systems to infer hidden dynamics and operate within real instrument limitations.
This paper argues that the high-frequency spin nutation mode predicted by the inertial Landau-Lifshitz-Gilbert (iLLG) equation is likely a spurious artifact arising from the low-frequency truncation of non-Markovian memory effects, rather than a genuine physical phenomenon confirmed by recent experiments.
This paper presents a unified study of charge and spin qubits in a single interacting quantum dot coupled to Rashba-active leads, utilizing both Lindblad master equations and matrix-product-state simulations to demonstrate how energetic leakage structures and spin-orbit-dependent hybridization govern relaxation, decoherence, and magnetic anisotropy in both equilibrium and dynamical regimes.
This paper theoretically demonstrates that scanning gate microscopy can probe chiral Andreev edge states at quantum Hall-superconductor interfaces by locally decoupling electron and hole paths to induce robust, disorder-resistant Aharonov-Bohm conductance oscillations, with distinct behaviors observed across different filling factors.
This paper demonstrates that nanoscale systems featuring a correlated quasiperiodic energy landscape, specifically within the Aubry-André-Harper family, can achieve highly efficient thermoelectric energy conversion with a figure of merit exceeding 2 by generating favorable non-uniform electronic transmission spectra.
This paper establishes a consistent framework for analyzing the second-order auto-correlation function () of blinking quantum emitters by demonstrating that fitting long-time correlation envelopes with correct blinking models yields the most accurate multi-photon contribution estimates, while normalizing to the Poisson level produces the worst results, thereby enabling reliable benchmarking of single-photon sources.
This paper derives a local Chern-Simons descendant marker to characterize the topology of two-dimensional time-reversal-invariant near-Gaussian states by constructing an auxiliary three-dimensional state and utilizing a local Hermitian involution that remains well-defined even without exact commutation with the density matrix, provided a spectral gap condition is met.
This paper demonstrates the active control of propagation speed for ultrashort (4 ps) electron wavepackets in engineered one-dimensional waveguides, marking a significant step toward ultrafast quantum information processing using flying electron qubits.
This paper proposes a purely optical Floquet framework that utilizes multi-beam interference of coherent light to dynamically engineer moiré-like superlattices, quasicrystalline potentials, and valley-dependent topological phase transitions in gapped Dirac materials, offering a reconfigurable alternative to mechanical twisting while overcoming diffraction limits through surface plasmon polaritons.