Decoherence of one-dimensional electron system

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Recently, there have been many attempts to implement quantum computation experimentally. For this purpose, quantum coherence should be maintained during gate operations. Therefore, the control of decoherence is a very important problem. In present study, we examine the decoherence of one-dimensional electron system, which coupled with acoustic phonon. The time-dependent Hatree-Fock approximation is applied for electron system, the Schroinger equation is applied for phonon.The metal-insulator transition found for coherence time. The results are the election interaction reduces the coherence time. We also exmined the Bang-Bang control, the results shows recovery of coherence.
3 pages, no figure

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Mesoscale and Nanoscale Physics, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/213161

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0809.1572
 http://arxiv.org/abs/0809.1572

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arXiv