Spectral properties of stochastic resonance in quantum transport
arXiv:2006.13773 · doi:10.1103/PhysRevLett.125.206801
Abstract
We investigate theoretically and experimentally stochastic resonance in a quantum dot coupled to electron source and drain via time-dependent tunnel barriers. A central finding is a transition visible in the current noise spectrum as a bifurcation of a dip originally at zero frequency. The transition occurs close to the stochastic resonance working point and relates to quantized pumping. For the evaluation of power spectra from measured waiting times, we generalize a result from renewal theory to the ac driven case. Moreover, we develop a master equation method to obtain phase-averaged current noise spectra for driven quantum transport.
arXiv comment10 pages, 6 figures
References in corpus (17)
- Shot Noise in Mesoscopic Conductors
- Driven quantum transport on the nanoscale
- Counting statistics of single-electron transport in a quantum dot
- Full Counting Statistics of Charge Transfer in Coulomb Blockade Systems
- Charging Effects in Ultrasmall Quantum Dots in the Presence of Time-Varying Fields
- Counting Statistics of Non-Markovian Quantum Stochastic Processes
- Measurement of finite-frequency current statistics in a single-electron transistor
- Counting statistics of transport through Coulomb blockade nanostructures: High-order cumulants and non-Markovian effects
- Non-adiabatic quantized charge pumping with tunable-barrier quantum dots: a review of current progress
- Robust single-parameter quantized charge pumping
- Frequency-dependent counting statistics in interacting nanoscale conductors
- Finite-frequency counting statistics of electron transport: Markovian Theory
- Shot Noise of a Tunnel Junction Displacement Detector
- Full-counting statistics of time-dependent conductors
- Zero-frequency noise in adiabatically driven, interacting quantum systems
- Monitoring quantum transport: Backaction and measurement correlations
- Lissajous rocking ratchet