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题名: Heisenberg-scaled magnetometer with dipolar spin-1 condensates
作者: Xing, HJ ;  Wang, AD ;  Tan, QS ;  Zhang, WX ;  Yi, S
刊名: PHYSICAL REVIEW A
出版日期: 2016
卷号: 93, 期号:4, 页码:43615
学科分类: Optics; Physics
DOI: http://dx.doi.org/10.1103/PhysRevA.93.043615
通讯作者: Xing, HJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We propose a scheme to realize a Heisenberg-scaled magnetometer using dipolar spin-1 condensates. The input state of magnetometer is prepared by slowly sweeping a transverse magnetic field to zero, which yields a highly entangled spin state of N atoms. We show that this process is protected by a parity symmetry such that the state preparation time is within the reach of the current experiment. We also propose a parity measurement with a Stern-Gerlach apparatus which is shown to approach the optimal measurement in the large atom number limit. Finally, we show that the phase estimation sensitivity of the proposed scheme roughly follows the Heisenberg scaling.
类目[WOS]: Optics ;  Physics, Atomic, Molecular & Chemical
关键词[WOS]: MAGNETIC-FIELD GRADIENT ;  STANDARD QUANTUM LIMIT ;  STATES ;  METROLOGY ;  SPECTROSCOPY ;  RESONANCE
收录类别: SCI
项目资助者: National 973 program [2012CB922104] ;  NSFC [11434011, 11421063, 11574239]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21688
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Xing, HJ,Wang, AD,Tan, QS,et al. Heisenberg-scaled magnetometer with dipolar spin-1 condensates[J]. PHYSICAL REVIEW A,2016,93(4):43615.
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