Simple Scheme for Dynamical Preparation of Spin Squeezed State of Trapped Ions

被引:1
作者
Liu, Desheng [1 ]
Chen, Gang [2 ]
机构
[1] Jiangxi Univ Sci & Technol, Dept Mech & Elect Engn, Nanchang 330013, Peoples R China
[2] Nanchang Normal Univ, Dept Phys, Nanchang 330032, Peoples R China
关键词
Spin squeezed state; Trapped ions; Dynamical preparation; QUANTUM FISHER INFORMATION; STATISTICAL DISTANCE; TWISTING MODEL;
D O I
10.1007/s10773-014-2186-6
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A scheme is proposed to dynamically prepare spin squeezed state of trapped ions, which are simultaneously excited by a laser beam. Simple analytical formula for the spin squeezing parameter has been derived. Its shown that the spin squeezed state can be dynamically generated by adjusting the detunning, the Lamb-Dicke parameter and the Rabi frequency.
引用
收藏
页码:4366 / 4371
页数:6
相关论文
共 21 条
[1]   STATISTICAL DISTANCE AND THE GEOMETRY OF QUANTUM STATES [J].
BRAUNSTEIN, SL ;
CAVES, CM .
PHYSICAL REVIEW LETTERS, 1994, 72 (22) :3439-3443
[2]   Nonlinear atom interferometer surpasses classical precision limit [J].
Gross, C. ;
Zibold, T. ;
Nicklas, E. ;
Esteve, J. ;
Oberthaler, M. K. .
NATURE, 2010, 464 (7292) :1165-1169
[3]  
Helstrom C W, 1976, QUANTUM DETECTION ES, P8
[4]   Entangled Property in Cloned Superposition State [J].
Jiang, Di-You .
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2013, 52 (12) :4308-4312
[5]   Spin Squeezing and Quantum Fisher Information in Generalized Two-Axis Twisting Model [J].
Jiang, Yan-Hu ;
Li, Song-Song .
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2013, 52 (08) :2826-2832
[6]   Relationship between spin squeezing and single-particle coherence in two-component Bose-Einstein condensates with Josephson coupling [J].
Jin, G. R. ;
Law, C. K. .
PHYSICAL REVIEW A, 2008, 78 (06)
[7]   Dynamic generation of spin-squeezed states in bosonic Josephson junctions [J].
Julia-Diaz, B. ;
Zibold, T. ;
Oberthaler, M. K. ;
Mele-Messeguer, M. ;
Martorell, J. ;
Polls, A. .
PHYSICAL REVIEW A, 2012, 86 (02)
[8]   SQUEEZED SPIN STATES [J].
KITAGAWA, M ;
UEDA, M .
PHYSICAL REVIEW A, 1993, 47 (06) :5138-5143
[9]  
Kuzmich A., 1998, PHYS REV LETT, V99, P1594
[10]   Optimization of entanglement witnesses [J].
Lewenstein, M ;
Kraus, B ;
Cirac, JI ;
Horodecki, P .
PHYSICAL REVIEW A, 2000, 62 (05) :052310-052311