標題: | Decoherence of a charge qubit embedded inside a suspended phonon cavity |
作者: | Liao, Y. Y. Chen, Y. N. Chou, W. C. Chuu, D. S. 電子物理學系 Department of Electrophysics |
公開日期: | 1-Jan-2008 |
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. |
URI: | http://dx.doi.org/10.1103/PhysRevB.77.033303 http://hdl.handle.net/11536/9798 |
ISSN: | 2469-9950 |
DOI: | 10.1103/PhysRevB.77.033303 |
期刊: | PHYSICAL REVIEW B |
Volume: | 77 |
Issue: | 3 |
起始頁: | 0 |
結束頁: | 0 |
Appears in Collections: | Articles |
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