From Random Telegraph to Gaussian Stochastic Noises: Decoherence and Spectral Diffusion in a Semiconductor Quantum Dot
| Autor: | Guillaume Cassabois, Alice Berthelot, Robson Ferreira, Christophe Voisin, Philippe Roussignol, Claude Delalande |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
0303 health sciences Quantum decoherence QC1-999 Applied Mathematics Dephasing General Physics and Astronomy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Noise (electronics) Quantum technology 03 medical and health sciences Quantum probability Open quantum system Quantum error correction Quantum mechanics 0103 physical sciences 010306 general physics Quantum dissipation 030304 developmental biology |
| Zdroj: | Advances in Mathematical Physics, Vol 2010 (2010) |
| ISSN: | 1687-9139 1687-9120 |
| DOI: | 10.1155/2010/494738 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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