Abstract By using the time-dependent multilevel approach, we have calculated the coherent population transfer among the quantum states of potassium atom by a single frequency-chirped laser pulse. The results show that the population can be efficiently transferred to a target state and be trapped there by using an `intuitive' or a `counter-intuitive' frequency sweep laser pulse in the case of `narrowband' frequency-chirped laser pulse. It is also found that a pair of sequential `broadband' frequency-chirped laser pulses can efficiently transfer population from one ground state of the $\varLambda$ atom to the other one.
Received: 28 August 2005
Revised: 26 October 2005
Accepted manuscript online:
Fund: Project supported by the Natural Science Foundation of Henan Province, China (Grant No 0411011900).
Cite this article:
Zhang Xian-Zhou (张现周), Ma Qiao-Zhi (马巧枝), Li Xiao-Hong (李小红) Coherent population transfer in Rydberg potassium atom by a single frequency-chirped laser pulse 2006 Chinese Physics 15 1497
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