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Global Optical Control of a Quantum Spin Chain

Abstract:

Quantum processors that combine the long decoherence times of spin qubits together with fast optical manipulation of excitons have recently been the subject of several proposals. Here, I show that arbitrary single- and entangling two-qubit gates can be performed in a chain of perpetually coupled spin qubits solely by using laser pulses to excite higher lying states. It is also demonstrated that universal QC is possible even if these pulses are applied globally to a chain; by employing a repea...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1367-2630/8/5/069

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Publisher:
IOP Publishing Publisher's website
Journal:
New Journal of Physics Journal website
Volume:
8
Issue:
5
Article number:
69
Publication date:
2006-05-01
DOI:
EISSN:
1367-2630
ISSN:
1367-2630
Source identifiers:
17531
UUID:
uuid:2c5f5a68-c999-41bb-9680-c948f4b32265
Local pid:
pubs:17531
Deposit date:
2012-12-19

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