Generalized ramsey scheme for precision spectroscopy of ultracold atoms and ions: Inclusion of a finite laser line width and spontaneous relaxation of the atomic levels

作者：Tabatchikova K S^*; Taichenachev A V; Yudin V I

来源：JETP Letters, 2013, 97(6): 311-315.

DOI：10.1134/S0021364013060155

Ramsey schemes with pulses of different lengths and with a composite pulse have been analyzed taking into account a finite width of the laser line and spontaneous relaxation of atomic levels. The optimal parameters of pulses corresponding to the maximum suppression of the excitation-related shift and the maximum resonance amplitude have been found for both schemes. According to the numerical results, spontaneous relaxation of the atomic levels and a finite width of the laser line must be taken into account in the calculation of the optimal parameters of the excitation pulses. The Ramsey scheme with a composite pulse is less sensitive to fluctuations of the Rabi frequency than the scheme with pulses of different lengths.

• 出版日期2013-5