Proposal for detection of non-Markovian decay via current noise
Mesoscale and Nanoscale Physics
2009-11-13 v6 Quantum Physics
Abstract
We propose to detect non-Markovian decay of an exciton qubit coupled to multi-mode bosonic reservoir via shot-noise measurements. Non-equilibrium current noise is calculated for a quantum dot embedded inside a \QTR{it}{p-i-n} junction. An additional term from non-Markovian effect is obtained in the derivation of noise spectrum. As examples, two practical photonic reservoirs, photon vacuum with the inclusion of cut-off frequency and surface plasmons, are given to show that the noise may become super-Poissonian due to this non-Markovian effect. Utilizing the property of super-radiance is further suggested to enhance the noise value.
Cite
@article{arxiv.cond-mat/0701541,
title = {Proposal for detection of non-Markovian decay via current noise},
author = {Yueh-Nan Chen and Guang-Yin Chen},
journal= {arXiv preprint arXiv:cond-mat/0701541},
year = {2009}
}
Comments
6 pages, 4 figures, To appear in Phys. Rev. B (2008)