Nonadiabatic Electron Pumping: Maximal Current with Minimal Noise
TLDR
The noise properties of pump currents through an open double-quantum-dot setup with nonadiabatic ac driving are investigated and a rotating-wave approximation provides analytical expressions for the current and its noise power and allows to optimize the noise characteristics.Abstract:
The noise properties of pump currents through an open double-quantum-dot setup with nonadiabatic ac driving are investigated. Driving frequencies close to the internal resonances of the double-dot system mark the optimal working points at which the pump current assumes a maximum while its noise power possesses a remarkably low minimum. A rotating-wave approximation provides analytical expressions for the current and its noise power and allows to optimize the noise characteristics. The analytical results are compared to numerical results from a Floquet transport theory.read more
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Artificial Brownian motors: Controlling transport on the nanoscale
Peter Hänggi,Fabio Marchesoni +1 more
TL;DR: In this paper, the constructive role of Brownian motion is exemplified for various physical and technological setups, which are inspired by the cellular molecular machinery: the working principles and characteristics of stylized devices are discussed to show how fluctuations, either thermal or extrinsic, can be used to control diffusive particle transport.
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Heat Transport in Harmonic Lattices
Abhishek Dhar,Dibyendu Roy +1 more
TL;DR: In this article, the authors studied the non-equilibrium steady state properties of a harmonic lattice which is connected to heat reservoirs at different temperatures, where the heat reservoirs are themselves modeled as harmonic systems.
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Tunable transport with broken space-time symmetries
TL;DR: In this paper, a unified introduction to the symmetry analysis and its action on the motion in one-dimensional periodic, both in time and space, potentials is presented. And the analysis is further generalized to quasi-periodic drivings, higher space dimensions, and quantum dynamics.
Book
Scattering Matrix Approach to Non-Stationary Quantum Transport
TL;DR: Landauer - Buttiker Formalism Current Noise Non-stationary Scattering Theory DC Current Generation AC Current Generation Noise of a Dynamical Scatterer Energetics of a DSCA Dynamical Mesoscopic Capacitor Quantum Circuits with Mesoscopic Capsule as a Particle Emitter as discussed by the authors.
Journal ArticleDOI
Tunable transport with broken space–time symmetries
TL;DR: In this article, a unified introduction to the symmetry analysis and its action on the motion in one-dimensional periodic, both in time and space, potentials is presented. And the analysis is further generalized to quasi-periodic drives, higher space dimensions, and quantum dynamics.