Investigation of robust population transfer using quadratically chirped laser interacting with two-level system

摘要: We have proposed and demonstrated a fast robust method of population transfer between two quantum states using quadratically chirped laser source. Incorporating the Jaynes-Cummings in full description interaction, numerically solving time-dependent Schrodinger equation, transition probabilities been obtained condition adiabatic passage is investigated. In this scheme, source has swept time for arbitrarily engineering probabilities. The results show that complete could be selectively achieved by appropriate adjusting chirping parameter, center frequency coupling strength which drastically decreased compared to linearly traditional laser. Furthermore, another feature stimulation intermediate transitions under nonadiabatic passage.