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Optical quantum control in a single quantum dot: toward a prototype semiconductor quantum computer

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7 Author(s)
Piermarocchi, C. ; Dept. of Phys., California Univ., San Diego, La Jolla, CA, USA ; Pochung Chen ; Sham, L.J. ; Xiaoqin Li
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Summary form only given. We give a theoretical description of how a prototype quantum computer using a single dot would function. The basic element of a quantum computer is represented by a quantum unit of information, or qubit. In our case, the presence and absence of the exciton in a quantum dot constitutes a qubit and the up and down spin excitons in the same dot yield two qubits with a strong mutual interaction. With laser control of these two excitons in a dot, we have the makings of a two-qubit quantum computer.

Published in:

Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the

Date of Conference:

19-24 May 2002