Spin squeezing and decoherence limit in Ramsey spectroscopy

Ulam-Orgikh, Duger; Kitagawa, Masahiro

Physical Review A, 2001, 64(5), 052106

Number of Access:378（2025-07-19 19:12 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/77655

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Title
Spin squeezing and decoherence limit in Ramsey spectroscopy
Creator
CreatorName
Ulam-Orgikh, Duger
NRID
1000020252629 1000020252629
ORCID
0000-0002-7434-6472 0000-0002-7434-6472
researchmap permalink
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Scopus Author ID
8326938600 8326938600
CreatorName
Kitagawa, Masahiro
Abstract
It is known that a partially entangled state gives improved sensitivity in generalized Ramsey spectroscopy in the presence of decoherence, whereas a maximally entangled state does not. However, it has been an open question whether the known decoherence limit in the improvement is achievable. We show that every spin-squeezed state possesses pairwise entanglement, thereby improving the spectroscopic sensitivity, and that even suboptimal entanglement in its easiest implementation suffices to asymptotically reach the decoherence limit without any measurement optimization.
Publisher
American Physical Society
Source Title
Physical Review A
Volume (Issue)
64(5)
Page
052106
Date of Issued
2001-10-08
Language
English
Handle URL
https://hdl.handle.net/11094/77655
PISSN
24699926
eISSN
24699934
NCID
AA10764867
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevA.64.052106
Access Rights
open access
CopyRight
Copyright (2001) by the American Physical Society
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article