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Encoding a qubit into multilevel subspaces

Abstract:

We present a formalism for encoding the logical basis of a qubit into subspaces of multiple physical levels. The need for this multilevel encoding arises naturally in situations where the speed of quantum operations exceeds the limits imposed by the addressability of individual energy levels of the qubit physical system. A basic feature of the multilevel encoding formalism is the logical equivalence of different physical states and correspondingly, of different physical transformations. This ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1367-2630/8/3/035

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
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Name:
National Science Foundation
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Name:
Defense Advanced Research Projects Agency
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Name:
Natural Sciences and Engineering Research Council of Canada
Publisher:
IOP Publishing
Journal:
New Journal of Physics More from this journal
Volume:
8
Issue:
3
Article number:
35
Publication date:
2004-12-01
DOI:
EISSN:
1367-2630
ISSN:
1367-2630
Keywords:
UUID:
uuid:a75d7fc6-fb82-42ac-97af-723729e35b42
Local pid:
pubs:215002
Source identifiers:
215002
Deposit date:
2012-12-19

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