Selective electron transfer between the quantum dots under the resonant pulse

Details Selective electron transfer between the quantum dots under the resonant pulse Selective electron transfer between the quantum dots under the resonant pulse

2004-11-03

arxiv.org/abs/cond-mat/0411083v1

Fiz. Tekh. Poluprovodn. (St. Petersburg) 39, 251 (2005) [Semiconductors 39, 235 (2005)]

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Presented at the International Symposium "Quantum Informatics - 2004", Moscow, October 5-8, 2004; to appear in Fiz. Tekh. Polu

Scientific paper

10.1117/12.620495

The coherent quantum dynamics of an electron in the quantum-dot ring structure under the resonant electromagnetic pulse is studied theoretically. A possibility of the selective electron transfer between any two dots is demonstrated. The transfer probability as a function of the pulse and dot parameters is calculated. It is shown that this probability can be close to unity. The factors lowering the transfer probability in real systems are discussed. The results obtained may be used in the engineering of novel nanoelectronic devices for quantum bits processing.

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