Journal article
On the Improvement of Frequency Stardards with Quantum Entanglement
- Abstract:
- The optimal precision of frequency measurements in the presence of decoherence is discussed. We analyze different preparations of n two level systems as well as different measurement procedures. We show that standard Ramsey spectroscopy on uncorrelated atoms and optimal measurements on maximally entangled states provide the same resolution. The best resolution is achieved using partially entangled preparations with a high degree of symmetry.
- Publication status:
- Published
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Authors
- Journal:
- Phys.Rev.Lett. More from this journal
- Volume:
- 79
- Issue:
- 20
- Pages:
- 3865
- Publication date:
- 1997-07-04
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- Language:
-
English
- Keywords:
- Pubs id:
-
pubs:19848
- UUID:
-
uuid:e267dc10-3df5-4623-a34f-554c3ef81303
- Local pid:
-
pubs:19848
- Source identifiers:
-
19848
- Deposit date:
-
2012-12-19
Terms of use
- Copyright date:
- 1997
- Notes:
- 4 pages, 4 figures
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