33 papers
This Perspectives article argues that predictive, first-principles simulations spanning materials to architectures are essential for co-designing specialized hardware capable of achieving orders-of-magnitude improvements in the energy efficiency of next-generation AI systems.
This paper develops a Fokker-Planck framework based on the Landau-Lifshitz-Gilbert equation with Langevin fields to model the thermal fluctuations and spin-wave dynamics of two-dimensional antiferromagnetic systems with uniaxial anisotropy, ultimately applying the theory to describe resistance fluctuations in antiferromagnetic semiconductors.
This paper provides experimental evidence for intrinsic, spin-polarized superconductivity in mesoscopic Fe(Te,Se) rings, characterized by a current-dependent magnetic field and dual flux quantization that is explained by a model combining Rashba coupling with anisotropic out-of-plane interactions.
This paper investigates the Jaynes-Cummings-Holstein model under anti-adiabatic conditions and demonstrates that strong qubit-phonon coupling, through polaronic dressing, effectively suppresses detuning effects and significantly reduces non-Markovian information backflow compared to the standard Jaynes-Cummings model.
This study reveals that large differential attosecond delays in photoemission from BiTe and BiSe arise from strong energy-dependent variations in final-state dynamics caused by multiple surface scattering, rather than intra-atomic effects or ballistic transport.
This paper demonstrates that continuous photogeneration of excitons in atomically thin transition metal dichalcogenides, combined with resident charge carriers, induces a picosecond-scale bistability in electron temperature driven by the feedback loop between Drude heating and the dissociation of trions into free carriers.
This paper introduces a novel mechanism called exceptional-bound (EB) band engineering that enables system-size-controlled topological transitions in non-Hermitian systems through unique critical scaling near exceptional points, distinct from the non-Hermitian skin effect and applicable to diverse experimental platforms.
This paper demonstrates that on current noisy intermediate-scale quantum (NISQ) devices, second-order symmetric Trotterization fails to outperform first-order methods in simulating transverse-field Ising model dynamics due to hardware errors dominating over the theoretical Trotter error, suggesting that higher-order decompositions should be used cautiously in early-stage quantum simulations.
This paper extends the Curie-Weiss model of quantum measurement from spin-1/2 to spin-1 systems by deriving and numerically evaluating the detailed dynamics of measuring the -component, including the associated macroscopic energy costs.
This paper predicts that the room-temperature ferromagnetic half-metal Mn2PC monolayer hosts type-II Weyl-like states and a concurrent anomalous Hall effect, enabling giant topological tunneling magnetoresistance in magnetic tunnel junctions for potential spintronic applications.
High-precision heat-capacity measurements of submonolayer He on graphite reveal a second-order transition between two striped domain-wall phases below 1 K, where the melting of the fixed-spacing phase into the variable-spacing phase supports the existence of a quantum nematic state characterized by one-dimensional phonons.
This paper demonstrates that by accounting for dispersion and absorption, photonic time crystals can convert dipole emission into broadband dipole absorption across a wide frequency range free of exceptional points, overcoming the narrowband and instability limitations typically associated with parametric resonance in these systems.
This paper demonstrates that skyrmions in ferrimagnetic films exhibit a gyroscopic cyclotron resonance analogous to that of electrons in metals, enabling the unambiguous measurement of skyrmion mass and revealing a frequency dip near the angular momentum compensation point where the mode hybridizes with ferromagnetic resonance.
This paper proposes a trap-enhanced negative-capacitance FET using amorphous oxide semiconductors, demonstrating that channel traps can paradoxically improve steep-slope switching by enhancing the negative potential drop of the ferroelectric layer, thereby overcoming performance degradation issues in back-end-of-line 3D integrations.
This paper presents a generalized, numerically stable Parratt formalism for simulating neutron and X-ray reflectivity in anisotropic multilayer systems, overcoming the instabilities associated with the traditional method of characteristic matrices while also addressing rough interfaces.
This paper introduces the enhanced point-and-charge (ePC) meta-generalized gradient approximation, a semilocal model for strong-interaction density functionals that restores the second-order gradient expansion and ensures non-negativity, demonstrating superior accuracy and broader applicability across diverse atomic and model systems compared to previous approaches.
This paper introduces a self-consistent, density-of-states-weighted decoherence probe formalism that resolves limitations in existing charge transport models for DNA by generating physically accurate, energy-dependent scattering rates that avoid unphysical broadening and spurious energy levels.
This paper presents a first-principles method for constructing Newns-Anderson Hamiltonians via projection operator diabatisation of Kohn-Sham DFT data to accurately model chemisorbed hydrogen on Al, Cu, and Pt surfaces, revealing that the widely used wideband limit approximation is valid for Al but insufficient for Cu and Pt.
Using particle tracking velocimetry with frozen deuterium tracers, this study presents evidence of anomalously long-lived vortex rings with multiquantum circulation in superfluid helium-4, challenging the standard paradigm that such vortices rapidly split into singly quantized filaments.
This paper introduces and experimentally validates the concept of "domain-direct band gaps" through first-principles calculations on twisted diamond, revealing a material where extended 2D manifolds of the conduction-band minimum and valence-band maximum create a direct gap with unique anisotropic carrier dynamics and enhanced optical absorption.