From random telegraph to gaussian stochastic noises : decoherence and spectral diffusion in a semiconductor quantum dot - Université Pierre et Marie Curie Access content directly
Book Sections Year : 2010

From random telegraph to gaussian stochastic noises : decoherence and spectral diffusion in a semiconductor quantum dot

Abstract

We present a general theoretical description of the extrinsic dephasing mechanism of spectral diffusion that dominates the decoherence dynamics in semiconductor quantum dots at low temperature. We discuss the limits of random telegraph and Gaussian stochastic noises and show that the combination of both approaches in the framework of the pre-Gaussian noise theory allows a quantitative interpretation of high-resolution experiments in single semiconductor quantum dots. We emphasize the generality and the versatility of our model where the inclusion of asymmetric jump processes appears as an essential extension for the understanding of semiconductor quantum dot physics.

Dates and versions

hal-00546788 , version 1 (14-12-2010)

Identifiers

Cite

Alice Berthelot, Christophe Voisin, Claude Delalande, Philippe Roussignol, R. Ferreira, et al.. From random telegraph to gaussian stochastic noises : decoherence and spectral diffusion in a semiconductor quantum dot. Quantum Information and Entanglement, Hindawi Publishing Corporation, pp.494738, 2010, ⟨10.1155/2010/494738⟩. ⟨hal-00546788⟩
72 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More