Coherent population transfer in Rydberg potassium atom by a single frequency-chirped laser pulse

• 来源期刊: 中国物理（英文版）
• 关键词: frequency-chirped laser pulse coherent population transfer
• 年，卷（期）: 2006,（7）
• 页码范围: 1497-1501
• 页数: 5页
• 语种: 英文

摘要

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 A atom to the other one.