Measure of phonon-number moments and motional quadratures through infinitesimal-time probing of trapped ions

被引:14
作者
Bastin, T
von Zanthier, J
Solano, E
机构
[1] Univ Liege, Inst Phys Nucl Atom & Spect, B-4000 Liege, Belgium
[2] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, D-91058 Erlangen, Germany
[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
[4] Pontificia Univ Catolica Peru, Dept Ciencias, Secc Fis, Lima, Peru
关键词
D O I
10.1088/0953-4075/39/3/020
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A method for gaining information about the phonon-number moments and the generalized nonlinear and linear quadratures in the motion of trapped ions (in particular, position and momentum) is proposed, valid inside and outside the Lamb-Dicke regime. It is based on the measurement of first time derivatives of electronic populations, evaluated at the motion-probe interaction time tau = 0. In contrast to other state-reconstruction proposals, based on measuring Rabi oscillations or dispersive interactions, the present scheme can be performed resonantly at infinitesimal short motion-probe interaction times, remaining thus insensitive to decoherence processes.
引用
收藏
页码:685 / 693
页数:9
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