369 papers
This paper introduces a physics-informed neural network framework that enables the unsupervised learning of effective Hamiltonian parameters directly from experimental transport data in solid-state quantum simulators, utilizing an autoencoder architecture with a physics-decoder to ensure physically meaningful representations, robust generalization, and noise resilience.
By quantifying spatial noise correlations in a five-qubit silicon spin array, this work demonstrates that while global magnetic drifts require mitigation, short-range charge noise correlations are compatible with fault-tolerant quantum error correction, establishing quantitative benchmarks for scalable silicon qubits.
This study demonstrates that embedding a single GaAs quantum dot in a dielectric metasurface enables simultaneous anti-bunched and super-bunched photon emission from neutral and charged exciton complexes, respectively, by enhancing weak charged exciton transitions to achieve comparable count rates.
This study employs a transfer-matrix framework to investigate electron transport in strained graphene subjected to electrostatic and magnetic barriers, revealing that the interplay of mechanical deformation and magnetic fields induces anomalous Klein tunnelling and enables effective modulation of electron conductance.
Addressing the breakdown of Bloch's theorem in spatially varying composites, this paper establishes a foundational ab initio quantum theoretical framework for functionally graded materials that derives effective field equations for modulated Bloch states, revealing non-tensorial electromagnetic properties and enabling the predictive design of optimized electronic devices such as graded p-n junctions.
This paper demonstrates that by renormalizing the Dirac field in curved spacetime, the metric's temporal and spatial gradients naturally induce non-Hermitian phenomena—specifically nonunitary gain/loss and the non-Hermitian skin effect—thereby establishing a unified geometric framework that links spacetime deformations to non-Hermitian phases of matter.
This paper investigates the vacuum expectation values of the field squared and energy-momentum tensor for a charged scalar field on a (2+1)-dimensional Beltrami pseudosphere with a compactified azimuthal coordinate, revealing that while geometric contributions are divergent, topological effects are finite and exhibit distinct power-law behaviors depending on the field mass, curvature coupling, and compactification scale.
This paper demonstrates that perfect transmission of Dirac particles in a one-dimensional double square barrier model forms a continuous curve extending from the above-barrier to the Klein zone, revealing a fundamental connection between relativistic Klein tunneling and non-relativistic resonant transmission even for subcritical barrier heights.
This paper develops a novel theoretical framework combining an exact real-time hybridization expansion and a Non-Crossing-Approximation resummation technique to compute the evolution of quantum impurities linearly coupled to non-Markovian environments while simultaneously interacting with additional Markovian baths via generic non-linear couplings.