Results 11 to 20 of about 2,145,711 (307)
Interaction-induced topological charge pump [PDF]
Physical Review Research, 2020 Based on a topological transition of the symmetry-protected topological phase (SPT), an interaction-induced topological charge pump (iTCP) is proposed with the symmetry-breaking parameter as a synthetic dimension.
Yoshihito Kuno, Yasuhiro Hatsugai
doaj +5 more sources
Tunable topological charge vortex microlaser [PDF]
Science, 2020 Optical vortices on demand Light has several degrees of freedom (wavelength, polarization, pulse length, and so on) that can be used to encode information.
Zhifeng Zhang +11 more
semanticscholar +6 more sources
Irrational charge from topological order [PDF]
Physical Review Letters, 2010 Topological or deconfined phases of matter exhibit emergent gauge fields and quasiparticles that carry a corresponding gauge charge. In systems with an intrinsic conserved U(1) charge, such as all electronic systems where the Coulombic charge plays this ...
R. Moessner +3 more
core +4 more sources
Effective Topological Charge Cancelation Mechanism. [PDF]
Sci Rep, 2016 AbstractTopological defects (TDs) appear almost unavoidably in continuous symmetry breaking phase transitions. The topological origin makes their key features independent of systems’ microscopic details; therefore TDs display many universalities. Because of their strong impact on numerous material properties and their significant role in several ...
Mesarec L +3 more
europepmc +4 more sources
Topological Phases in AB-Stacked MoTe_{2}/WSe_{2}: Z_{2} Topological Insulators, Chern Insulators, and Topological Charge Density Waves. [PDF]
Physical Review Letters, 2021 We present a theory on the quantum phase diagram of AB-stacked MoTe_{2}/WSe_{2} using a self-consistent Hartree-Fock calculation performed in the plane-wave basis, motivated by the observation of topological states in this system.
Haining Pan +3 more
semanticscholar +1 more source
Shape of the hot topological charge density spectral function [PDF]
Journal of High Energy Physics, 2022 After motivating an interest in the shape of the topological charge density spectral function in hot Yang-Mills theories, we estimate it with the help of thermally averaged classical real-time simulations, for Nc = 2, 3.
M. Laine +3 more
semanticscholar +1 more source
Topological charge conservation for continuous insulators [PDF]
Journal of Mathematics and Physics, 2021 This paper proposes a classification of elliptic (pseudo-)differential Hamiltonians describing topological insulators and superconductors in Euclidean space by means of domain walls.
G. Bal
semanticscholar +1 more source
Topological Charge Pumping in Excitonic Insulators [PDF]
Physical Review Letters, 2021 We show that in excitonic insulators with $s$-wave electron-hole pairing, an applied electric field (either pulsed or static) can induce a $p$-wave component to the order parameter, and further drive it to rotate in the $s+ip$ plane, realizing a Thouless charge pump. In one dimension, each cycle of rotation pumps exactly two electrons across the sample.
Zhiyuan Sun, Andrew J. Millis
openaire +3 more sources
Biasing topological charge injection in topological matter [PDF]
Physical Review B, 2021 We explore the interplay between topologies in the momentum and real spaces to formulate a thermodynamic description of nonequilibrium injection of topological charges under external bias. We show that the edge modes engendered by the momentum-space topology can play a functional role of connecting the external reservoirs to the bulk transport of ...
Mostafa Tanhayi Ahari +3 more
openaire +2 more sources
Free-space creation of a perfect vortex beam with fractional topological charge.
Optics Express, 2023 Perfect vortex beams can only propagate stably with integer topological charges. Thus, creating perfect fractional vortex beams capable of stable propagation in free space, as perfect integer vortex beams, is crucial.
Guanxue Wang +6 more
semanticscholar +1 more source