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

T Bastin, J von Zanthier, E Solano
2006 Journal of Physics B: Atomic, Molecular and Optical Physics  
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 t=0. In contrast to other state-reconstruction proposals, based on measuring Rabi oscillations or dispersive
more » ... , the present scheme can be performed resonantly at infinitesimal short motion-probe interaction times, remaining thus insensitive to decoherence processes.
doi:10.1088/0953-4075/39/3/020 fatcat:ej5y3s5oajdstjloxqjvo5hjmu