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Selective spin coupling through a single exciton.

Abstract:
We present a novel scheme for performing a conditional phase gate between two spin qubits in adjacent semiconductor quantum dots through delocalized single exciton states, formed through the interdot Förster interaction. We consider two resonant quantum dots, each containing a single excess conduction band electron whose spin embodies the qubit. We demonstrate that both the two-qubit gate and arbitrary single-qubit rotations may be realized to a high fidelity with current semiconductor and laser technology.
Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Barrett, SD More by this author
Spiller, TP More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Journal:
Physical review letters
Volume:
93
Issue:
15
Pages:
150502
Publication date:
2004-10-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:7f619395-5275-4903-8ddd-12da7eae2736
Source identifiers:
13240
Local pid:
pubs:13240
Language:
English

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