Quantum spin squeezing

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	Quantum spin squeezing
	Sun, CP
刊名	PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
	2011
卷号	509 期号:41308 页码:89-165
关键词	BOSE-EINSTEIN CONDENSATE GRAVITATIONAL-WAVE DETECTOR CONTINUOUS VARIABLE SYSTEMS COLLECTIVE ATOMIC SPIN MULTI-QUBIT SYSTEMS 2-ATOM DICKE-MODEL COHERENT STATES PROJECTION NOISE KICKED TOP NONDEMOLITION MEASUREMENTS
ISSN号	0370-1573
通讯作者	Ma, J (reprint author), Zhejiang Univ, Zhejiang Inst Modern Phys, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China.
英文摘要	This paper reviews quantum spin squeezing, which characterizes the sensitivity of a state with respect to SU(2) rotations, and is significant for both entanglement detection and high-precision metrology. We first present various definitions of spin squeezing parameters, explain their origin and properties for typical states, and then discuss spin-squeezed states produced with nonlinear twisting Hamiltonians. Afterward, we explain pairwise correlations and entanglement in spin-squeezed states, as well as the relations between spin squeezing and quantum Fisher information, where the latter plays a central role in quantum metrology. We also review the applications of spin squeezing for detecting quantum chaos and quantum phase transitions, as well as the influence of decoherence on spin squeezing. Finally, we review several experimental realizations of spin squeezing, as well as their corresponding theoretical backgrounds, including: producing spin-squeezed states via particle collisions in Bose-Einstein condensates, transferring photon squeezing to atomic ensembles, and generating spin squeezing via quantum nondemolition measurements. (C) 2011 Elsevier B.V. All rights reserved.
学科主题	Physics
收录类别	SCI
资助信息	Laboratory of Physical Sciences (LPS); National Security Agency (NSA); Army Research Office (ARO); Defense Advanced Research Projects Agency (DARPA); Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF) [0726909]; JSPSRFBR [09-02-92114]; MEXT Kakenhi on Quantum Cybernetics; Funding Program for Innovative R&D on Science and Technology (FIRST); NSFC [11025527, 10874151, 10935010]; Ministry of Education
原文出处	http://dx.doi.org/10.1016/j.physrep.2011.08.003
语种	英语
WOS记录号	WOS:000299061700001
公开日期	2013-05-17
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14218]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Sun, CP. Quantum spin squeezing[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS,2011,509(41308):89-165.
APA	Sun, CP.(2011).Quantum spin squeezing.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS,509(41308),89-165.
MLA	Sun, CP."Quantum spin squeezing".PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS 509.41308(2011):89-165.