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Preparing high purity initial states for nuclear magnetic resonance quantum computing.

Abstract:

Here we demonstrate how parahydrogen can be used to prepare a two-spin system in an almost pure state which is suitable for implementing nuclear magnetic resonance quantum computation. A 12 ns laser pulse is used to initiate a chemical reaction involving pure parahydrogen (the nuclear spin singlet of H2). The product, formed on the micros time scale, contains a hydrogen-derived two-spin system with an effective spin-state purity of 0.916. To achieve a comparable result by direct cooling would...

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Publication status:
Published

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Authors


Blazina, D More by this author
Carteret, HA More by this author
Duckett, SB More by this author
Halstead, TK More by this author
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Journal:
Physical review letters
Volume:
93
Issue:
4
Pages:
040501
Publication date:
2004-07-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:f0e53be4-9324-42df-95df-b673fbffd820
Source identifiers:
25234
Local pid:
pubs:25234
Language:
English

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