Effect of Coulomb interaction on current noise in open quantum dots
arXiv:0711.2067 · doi:10.1103/PhysRevB.76.201303
Abstract
We analyze the effect of Coulomb interaction on the noise of electric current through an open quantum dot. We demonstrate that the ensemble average value of the noise power acquires an interaction correction even for a dot coupled to the leads by reflectionless point contacts, when the ensemble average conductance is known to have no interaction corrections. To leading order, the correction to the noise originates from the formation of a nonequilibrium state of the Coulomb field describing the interaction between electrons. We find the dependence of the current noise power on the electron temperature, the applied voltage bias, and the strength of the Coulomb interaction.
4.5 pages, 2 figures
References in corpus (17)
- Shot Noise in Mesoscopic Conductors
- Electron Counting Statistics and Coherent States of Electric Current
- Quantum Effects in Coulomb Blockade
- Full Counting Statistics of Charge Transfer in Coulomb Blockade Systems
- Enhanced shot noise in resonant tunneling: theory and experiment
- Shot Noise Detection on a Carbon Nanotube Quantum Dot
- Mesoscopic charge quantization
- Shot Noise by Quantum Scattering in Chaotic Cavities
- Interaction corrections to the thermal transport coefficients in disordered metals: quantum kinetic equation approach
- Inelastic Interaction Corrections and Universal Relations for Full Counting Statistics
- Noise Correlations in a Coulomb Blockaded Quantum Dot
- Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots
- Electron transport through interacting quantum dots
- Full Current Statistics in the Regime of Weak Coulomb Interaction
- Effects of electron-electron interaction on the conductance of open quantum dots
- Weak Coulomb blockade effect in quantum dots
- Spin Related Effects in Transport Properties of "Open" Quantum Dots