Competing many-body interactions in systems of trapped ions

被引：45
|
作者：
Bermudez, A. [1 ]
Porras, D. [1 ,2 ]
Martin-Delgado, M. A. [1 ]
机构：
[1] Univ Complutense, Dept Fis Teor 1, E-28040 Madrid, Spain
[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源：
PHYSICAL REVIEW A | 2009年 / 79卷 / 06期
关键词：
phase diagrams; quantum optics; spin Hamiltonians; trapped ions;
D O I：
10.1103/PhysRevA.79.060303
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and theoretically analyze an experimental configuration in which lasers induce three-spin interactions between trapped ions. By properly choosing the intensities and frequencies of the lasers, three-spin couplings may be dominant or comparable to two-spin terms and magnetic fields. In this way, trapped ions can be used to study exotic quantum phases which do not have a counterpart in nature. We study the conditions for the validity of the effective three-spin Hamiltonian and predict qualitatively the quantum phase diagram of the system.
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页数：4
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