Quantum transitions induced by the third cumulant of current fluctuations
Mesoscale and Nanoscale Physics
2009-11-11 v3 Superconductivity
Abstract
We investigate the transitions induced by external current fluctuations on a small probe quantum system. The rates for the transitions between the energy states are calculated using the real-time Keldysh formalism for the density matrix evolution. We especially detail the effects of the third cumulant of current fluctuations inductively coupled to a quantum bit and propose a setup for detecting the frequency-dependent third cumulant through the transitions it induces.
Cite
@article{arxiv.cond-mat/0506601,
title = {Quantum transitions induced by the third cumulant of current fluctuations},
author = {T. Ojanen and T. T. Heikkila},
journal= {arXiv preprint arXiv:cond-mat/0506601},
year = {2009}
}
Comments
4 pages, 3 figures