Decoherence of a charge qubit embedded inside a suspended phonon cavity

Y. Y. Liao*, Y. N. Chen, Wu-Ching Chou, D. S. Chuu

*Corresponding author for this work

研究成果: Article

11 引文 斯高帕斯(Scopus)

摘要

This study elucidates the theory of phonon-induced decoherence of a double dot charge qubit that is embedded inside a suspended semiconductor slab. The influences of the lattice temperature, width of the slab, and positions of the dots on the decoherence are analyzed. Numerical results indicate that the decoherence in the slab system is weaker than that in a bulk environment. In particular, the decoherence is markedly suppressed by the inhibition of the electron-phonon coupling. Such a system with low decoherence may be useful for manipulating the qubits.

原文English
文章編號033303
期刊Physical Review B - Condensed Matter and Materials Physics
77
發行號3
DOIs
出版狀態Published - 14 一月 2008

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