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Thouless pumps

WebJul 27, 2024 · For an adiabatic Thouless pump the number of particles transported by one lattice constant per cycle is given by the Berry phase, i.e., the Berry flux penetrating a … Webt. e. Pumping and stirring effects in quantum physics have counterparts in purely classical stochastic and dissipative processes. [1] The studies of quantum pumping [2] [3] and of quantum stirring [4] emphasize the role of quantum interference in the analysis of the induced current. A major objective is to calculate the amount of transported ...

Quantized fractional Thouless pumping of solitons Nature Physics

WebMar 19, 2024 · Adiabatic cyclic modulation of a one-dimensional periodic potential will result in quantized charge transport, which is termed the Thouless pump. In contrast to the original Thouless pump restricted by the topology of the energy band, here we experimentally observe a generalized Thouless pump that can be extensively and continuously … WebAug 7, 2024 · This work experimentally observes a generalized Thouless pump that can be extensively and continuously controlled and suggests an alternative means to detect quantum or topological phase transitions. Adiabatic cyclic modulation of a one-dimensional periodic potential will result in quantized charge transport, which is termed the Thouless … lakewood sounder station https://tycorp.net

Experimental Observation of a Generalized Thouless Pump with a …

WebMar 2, 2024 · In this article, we develop a description of topological pumps as slow classical dynamical variables coupled by a quantum system. We discuss the cases of quantum Hall … WebOct 25, 2024 · (a) In a Thouless pump, the Wannier functions perform a quantized drift established by the Chern number of the corresponding band. (b) In a nonlinear setting, the motion of a soliton follows the ... WebJan 12, 2024 · Theory of quantized fractional Thouless pumping a, Individually normalized wavefunctions of instantaneous solitons (gP/Jmax = 0.55, 1.65 and 2.75, from left to right), calculated for two periods. helm connect conference

Quantized Fractional Thouless Pumping of Solitons

Category:Thouless Pumps and Bulk-Boundary Correspondence in Higher …

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Thouless pumps

An ideal rapid-cycle Thouless pump - SciPost

Webfollowing, we propose two types of Thouless pumps in this model. Thouless pumping cycle.{ A Thouless pump is the cyclic adiabatic variation of an external parameter. It leads to quantized charge transport that characterizes the topology of the bulk [5,48]. For the 2D SL-BHM our full pumping cycle consists of a closed trajectory in a - t ... WebAdiabatic quantum motor. Scheme of an adiabatic quantum motor made of a quantum dot coupled to a rotating wheel. An adiabatic quantum motor is a mechanical device, typically nanometric, driven by a flux of quantum particles and able to perform cyclic motions. The adjective “adiabatic” in this context refers to the limit when the dynamics of ...

Thouless pumps

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WebJun 17, 2024 · Figure 1. Thouless pumps in the 2D SL-BHM. (a) Interacting bosons on a square lattice with staggered tunneling (strengths t and 1 − t, respectively) and OBC.(b) … WebJan 4, 2024 · A Thouless pump is a ‘quantum’ pump, in which the amount of ‘charge’ pumped during one cycle is quantized according to the Chern number — a topological …

WebDec 2, 2024 · A Thouless pump is a ‘quantum’ pump, in which the amount of ‘charge’ pumped during one cycle is quantized according to the Chern number — a topological invariant. WebHere, we report a non-adiabatic topological pumping that can adiabatically manipulate anomalous Floquet topological states in a 1D periodically-driven systems. We propose and demonstrate in waveguide array simulations Thouless-like topological pumping of non-adiabatic topological systems.

WebNov 23, 2024 · A Thouless pump can be regarded as a dynamical version of the integer quantum Hall effect. In a finite-size configuration, such a topological pump displays edge modes that emerge dynamically from one bulk band and dive into the opposite bulk band, an effect that can be reproduced with both quantum and classical systems. Here, we report … WebJul 27, 2024 · A Thouless pump is a ‘quantum’ pump, in which the amount of ‘charge’ pumped during one cycle is quantized according to the Chern number — a topological invariant.

WebApr 25, 2024 · A prototypical example is a 1981 thought experiment devised by the Nobel-prize-winning physicist Robert Laughlin to explain the quantization of Hall conductance [ 1 …

WebOct 17, 2024 · Nonlinear Thouless pumps for bosons exhibit quantized pumping via soliton motion, despite the lack of a meaningful notion of filled bands. However, the theoretical … helm connection refusedWebOct 19, 2024 · Thouless pump protocols preserve the system’s translational symmetry, and as such, different states within the same bulk band, which possess different momenta, … helm connect supportWebstitute a Thouless pump, in which a quantized amount of charge or spin is transported, which is topologically protected3,4. Simulating the non-interacting Rice-Mele model (RMM)5 with ultracold atoms, quantized charge pumping has been achieved for bosons6 and fermions7. More recently, charge pumping in the fermionic interact- helm connivingratWebThouless pumps. Course subject (s) 03. More parameters: charge pumping. helm confluent kafkahelm console for sailboatWebWhen parameters are varied periodically, charge can be pumped through a mesoscopic conductor without applied bias. Here, we consider the inverse effect in which a transport current drives a periodic variation of an adi… helm consoleWebOct 17, 2024 · Thouless pump is a one-dimensional dynamic topological effect that stems from the same topological mechanism as the renowned two-dimensional Chern … lakewood south cemetery