Roles of dephasing in the population transfer in stimulated Raman adiabatic process

Autor:	Qiong Wang, Hao-Sheng Zeng, Jian-Jun Nie
Rok vydání:	2013
Předmět:	Quantum optics Physics Transfer efficiency Condensed matter physics Dephasing Spontaneous emission Stimulated raman Population transfer Atomic physics Adiabatic process Atomic and Molecular Physics and Optics
Zdroj:	The European Physical Journal D. 67
ISSN:	1434-6079 1434-6060
DOI:	10.1140/epjd/e2013-40024-7
Popis:	We investigate the population transfer for a three-level Λ system with both spontaneous emission and dephasing noises via stimulated Raman adiabatic process. Special attention is paid to the dependence of population transfer efficiency on the spontaneous emission rates Γ 1,2 and dephasing rate Γ 3. It is found that the loss of transfer efficiency induced by pure dephasing is much more stronger than that by pure spontaneous emission. Interestingly, the dephasing is not always harmful: modest dephasing can completely or partly reverse the effect of spontaneous emission Γ 2, leading to the efficiency of population transfer from decreasing to increasing with Γ 2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::936ad94319361ccd0d221b9bff30dc86 https://doi.org/10.1140/epjd/e2013-40024-7 Zobrazit plný text záznamu Full text from SpringerLink