Quantum metrology at the Heisenberg limit with ion trap motional compass states

被引：43
|
作者：
Dalvit, D. A. R.
De Matos Filho, R. L.
Toscano, F.
机构：
[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[2] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil
[3] Fdn Ctr Ciencias & Educ Super Distancia Estado Ri, BR-20943001 Rio De Janeiro, Brazil
来源：
NEW JOURNAL OF PHYSICS | 2006年 / 8卷
关键词：
D O I：
10.1088/1367-2630/8/11/276
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Sub-Planck phase-space structures in the Wigner function of the motional degree of freedom of a trapped ion can be used to perform weak force measurements with Heisenberg-limited sensitivity. We propose methods to engineer the Hamiltonian of the trapped ion to generate states with such small-scale structures, and we show how to use them in quantum metrology applications.
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收藏
页数：18
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