Quasiperiodic Floquet-Thouless energy pump

• URL: http://arxiv.org/abs/2010.11485v2
• Date: Mon, 18 Oct 2021 17:37:18 GMT
• Title: Quasiperiodic Floquet-Thouless energy pump
• Authors: Frederik Nathan, Rongchun Ge, Snir Gazit, Mark S. Rudner, Michael Kolodrubetz
• Abstract summary: We show that quantization of energy pumping persists for finite ramping frequencies. We show that a related phase can be realized with a cavity-qubit system driven by two incommensurate modes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recent work [M. H. Kolodrubetz et al, PRL 120, 150601] has demonstrated that periodically driven one-dimensional fermionic systems can support quantized energy pumping resulting from an adiabatic modulation of a second parameter. In this work, we explore this topological Floquet-Thouless energy pump in the quasiperiodic driving regime where the parametric driving occurs at finite frequency. We show that quantization of energy pumping persists for finite ramping frequencies, as long as they are incommensurate with the driving frequency, and the system remains localized by spatial disorder. Thus, the topological Floquet-Thouless energy pump is stable beyond the adiabatic regime, occupying a finite region of parameter space. Phase transitions away from these topological phases are accompanied by delocalization in position space, photon number (energy) space, or both. Using a dimensional reduction scheme, we demonstrate that a related phase can be realized with a cavity-qubit system driven by two incommensurate modes.

Related papers

• Non-unitary time dynamics of topological modes in open planar quantum systems [0.0]
  We investigate non-unitary time dynamics of topological modes in square lattice-based open quantum systems. We show that in the presence of such a real time ramp, the survival probability of these modes decreases (increases) in short (long) time scale. For a reverse course of the time evolution, the revival or condensation probability of nucleating such topological modes, otherwise absent in the initial system, increases for stronger system-to-environment coupling.
  arXiv  Detail & Related papers  (2025-02-06T18:59:33Z)
• A strong-driving toolkit for topological Floquet energy pumps with superconducting circuits [0.0]
  Topological Floquet energy pumps use periodic driving to create a topologically protected quantized energy current. Previous work proposed that such a pump could be realized with a strongly-driven superconducting qubit coupled to a cavity. Here, we experimentally demonstrate that the proposed hierarchy of energy scales and drive frequencies can be realized using a transmon qubit.
  arXiv  Detail & Related papers  (2025-01-29T19:00:01Z)
• Topological anomalous Floquet photon pump [0.0]
  We propose a simple, experimentally viable protocol to realize non-adiabatic topological photon pumping mediated by a single qubit. For both quantized photons and external drive, the system exhibits a non-trivial topological phase across a broad range of parameter space.
  arXiv  Detail & Related papers  (2024-10-14T18:00:07Z)
• Disorder-induced topological pumping on a superconducting quantum processor [22.437412238586404]
  Thouless pumping represents the quantized charge pumped during an adiabatic cyclic evolution. With a 41-qubit superconducting quantum processor, we develop a Floquet engineering technique to realize cycles of adiabatic pumping. We observe Thouless pumping in the presence of disorder and show its breakdown as the strength of disorder increases.
  arXiv  Detail & Related papers  (2024-01-03T03:57:54Z)
• Thermodynamics of adiabatic quantum pumping in quantum dots [50.24983453990065]
  We consider adiabatic quantum pumping through a resonant level model, a single-level quantum dot connected to two fermionic leads. We develop a self-contained thermodynamic description of this model accounting for the variation of the energy level of the dot and the tunnelling rates with the thermal baths.
  arXiv  Detail & Related papers  (2023-06-14T16:29:18Z)
• Photoinduced prethermal order parameter dynamics in the two-dimensional large-$N$ Hubbard-Heisenberg model [77.34726150561087]
  We study the microscopic dynamics of competing ordered phases in a two-dimensional correlated electron model. We simulate the light-induced transition between two competing phases.
  arXiv  Detail & Related papers  (2022-05-13T13:13:31Z)
• Self-oscillating pump in a topological dissipative atom-cavity system [55.41644538483948]
  We report on an emergent mechanism for pumping in a quantum gas coupled to an optical resonator. Due to dissipation, the cavity field evolves between its two quadratures, each corresponding to a different centrosymmetric crystal configuration. This self-oscillation results in a time-periodic potential analogous to that describing the transport of electrons in topological tight-binding models.
  arXiv  Detail & Related papers  (2021-12-21T19:57:30Z)
• Universal nonadiabatic energy pumping in a quasiperiodically driven extended system [1.6328866317851185]
  We propose an experimentally realizable, one dimensional chain driven by two frequencies, which maps into a gapless Weyl semimetal in synthetic dimension. Based on analytical reasoning and numerical simulations, we found the nonadiabatic quantum dynamics of this system exhibit energy pumping behaviors characterized by universal functions.
  arXiv  Detail & Related papers  (2021-10-14T22:46:27Z)
• Bloch-Landau-Zener dynamics induced by a synthetic field in a photonic quantum walk [52.77024349608834]
  We realize a photonic quantum walk in the presence of a synthetic gauge field. We investigate intriguing system dynamics characterized by the interplay between Bloch oscillations and Landau-Zener transitions.
  arXiv  Detail & Related papers  (2020-11-11T16:35:41Z)
• Engineering multipartite entangled states in doubly pumped parametric down-conversion processes [68.8204255655161]
  We investigate the quantum state generated by optical parametric down-conversion in a $chi(2) $ medium driven by two modes. The analysis shows the emergence of multipartite, namely 3- or 4-partite, entangled states in a subset of the modes generated by the process.
  arXiv  Detail & Related papers  (2020-07-23T13:53:12Z)
• Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
  We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit. We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront. The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
  arXiv  Detail & Related papers  (2020-03-09T21:27:02Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.