Decoherence of one-dimensional electron system

Details Decoherence of one-dimensional electron system Decoherence of one-dimensional electron system

2008-09-09

arxiv.org/abs/0809.1572v5

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, no figure

Scientific paper

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.

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