D.j. thouless phys. rev. b 27 6083 1983
WebJun 23, 2024 · The discovery of the quantization of particle transport in adiabatic pumping cycles of periodic structures by Thouless [Phys. Rev. B 27, 6083 (1983)] linked the … WebIn such dynamical systems, traditional concepts from equilibrium physics, such has the notion of a ground state, are no longer useful. Instead, an understanding of these …
D.j. thouless phys. rev. b 27 6083 1983
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WebFeb 18, 2005 · 35 Since the Hamiltonian HT (θ) is translationally invariant, [HT,T'µ]=0. That is T'µ=eikµ with kµ=2πmµ/Lµ, mµ=0, ±1, ±2,. .., the ground state multiplet may compose of states with different kµ. We may define the Chern numbers using these conserved quantum numbers. However it is natural to discuss (almost) degenerate states as a ... WebMay 20, 2024 · The discovery of the quantization of particle transport in adiabatic pumping cycles of periodic structures by Thouless [Phys. Rev. B 27, 6083 (1983).] linked the …
WebOne of the challenges of adiabatic control theory is the proper inclusion of the effects of dissipation. Here we study the adiabatic dynamics of an open two-level quantum system deriving a generalized master equation to consistently account for the combined action of the driving and dissipation. We demonstrate that in the zero-temperature limit the ground … WebThe Thouless energy is a characteristic energy scale of diffusive disordered conductors.It was first introduced by the Scottish-American physicist David J. Thouless when studying …
WebOct 1, 2024 · Finally, we adapt a proof of quantization of the Thouless charge pump to the case of infinite-volume gapped lattice systems in one dimension. ACKNOWLEDGMENTS This research was supported, in part, by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award No. DE-SC0011632. Webof a Thouless pump Overview of Driven Quantum Systems The introduction of time dependence into a quantum system can dramatically increase the complexity of the problem. In such dynamical systems, traditional …
WebAug 21, 1984 · Quantised adiabatic charge transport in the presence of substrate disorder and many-body interaction. Q Niu1 and D J Thouless1. Published under licence by IOP …
WebMar 15, 2024 · Superfluid-Mott insulator phase transition in optical lattices. a–h Time-of-flight absorption images of the ultracold atoms in the optical lattice. As the lattice depth is gradually increased, the matter wave interference fringes appear (b-d, Bragg peak).These peaks are gradually decreased (d-f), and eventually disappeared (g, h) as the lattice … hostlistener window:resize $eventWebWhenever the Fermi level lies in a gap (or mobility gap) the bulk Hall conductance can be expressed in a topologically invariant form showing the quantization explicitly. The new formulation generalizes the earlier result by Thouless, Kohmoto, Nightingale, and den Nijs to the situation where many-body interaction and substrate disorder are also present. … psychopass professor mbti databaseWebMay 11, 2024 · Thouless pumping is intrinsically an adiabatic effect, which breaks down at finite driving frequencies. We demonstrate both theoretically and experimentally that … psychopass twitterWebREPORTS A References and Notes psychopass liability to commit a crimeWebOct 13, 2024 · 25 D. J. Thouless, Phys. Rev. B 27, 6083 (1983). 10.1103/PhysRevB.27.6083 Crossref, Google Scholar 26 Q. Niu, Phys. Rev. B 34 , … hostload exceeded googleWebWe discuss the geometric and topological content of adiabatic transport and show that the mechanism of Thouless and Niu for quantized transport via Chern numbers cannot be realized in quantum pumps where Chern numbers necessarily vanish. ... Phys. Rev. B 27:6083 (1983); Q. Niu, Phys. Rev. Lett. 64:1812 (1990). Google Scholar D. J. … hostload:8080WebMay 15, 2024 · Adiabatic pumping is a fundamental concept in the time-dependent transport of mesoscopic devices. To maximize pumping performance, i.e., the amount of pumping per unit time, it is necessary to carefully manage the driving speed, which should be sufficiently less than the limited speed, an upper bound of the driving speed below which non … hostlittleendian