Charge fluctuations in single-electron tunneling oscillations
arXiv:1111.4080 · doi:10.1103/PhysRevB.85.115416
Abstract
It has been predicted that in the presence of a sufficiently high-dissipative environment transport in a small tunnel junction can become extremely regular, giving rise to the phenomenon of single-electron tunneling oscillations. Recent progress in detection of high-frequency current fluctuations and the interest in single-electron sources motivate further investigations on the expected accuracy of the charge oscillations as a function of the impedance of the environment. In this paper we study theoretically the charge-fluctuation spectrum at finite frequency for the system at hand, and investigate its evolution as a function of the external impedance. The evolution and the disappearance of the single-electron oscillations peak is described by analytical and numerical methods.
11 pages, 12 figures
References in corpus (4)
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- Dynamics of Quantum Noise in a Tunnel Junction under ac Excitation
- Coulomb blockade of Cooper pair tunneling and parity effects in the Cooper pair transistor
- Towards the observation of phase locked Bloch oscillations in arrays of small Josephson junctions