Deterministic spin-wave interferometer based on the Rydberg blockade

被引：8

作者：

Wei, Ran ^{[1
,2
]}

Zhao, Bo ^{[3
,4
]}

Deng, Youjin ^{[1
,2
]}

Chen, Yu-Ao ^{[5
,6
]}

Pan, Jian-Wei ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

[3] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[4] Austrian Acad Sci, Inst Quantum Opt & Quantum Informat, A-6020 Innsbruck, Austria

[5] Univ Munich, Fak Phys, D-80798 Munich, Germany

[6] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW A | 2011年 / 83卷 / 06期

基金：

中国国家自然科学基金; 奥地利科学基金会;

关键词：

D O I：

10.1103/PhysRevA.83.063623

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The spin-wave (SW) N-particle path-entangled vertical bar N,0 > + vertical bar 0,N > (NOON) state is an N-particle Fock state with two atomic spin-wave modes maximally entangled. Attributed to the property that the phase is sensitive to collective atomic motion, the SW NOON state can be utilized as anatomic interferometer and has promising application in quantum enhanced measurement. In this paper we propose an efficient protocol to deterministically produce the atomic SW NOON state by employing the Rydberg blockade. Possible errors in practical manipulations are analyzed. A feasible experimental scheme is suggested. Our scheme is far more efficient than the recent experimentally demonstrated one, which only creates a heralded second-order SW NOON state.

引用

页数：5

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