Article (Scientific journals)
Cold three-level atom micromaser in the far-detuning regime
Martin, John; Bastin, Thierry
2007In Physical Review. A, Atomic, molecular, and optical physics, 75, p. 053820:1-9
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Abstract :
[en] We analyze the quantum theory of the two-mode micromaser pumped by cold three-level atoms with a Lambda-configuration under the two-photon resonance condition. We focus more specifically on the large detuning limit where the detuning between the two cavity mode frequencies and the two atomic transition frequencies is large in comparison with the atom-cavity coupling constants. We show that this regime can mimic a virtual two-level atom micromaser without spontaneous emission where the cavity acts for the atoms as a potential barrier or a potential well (depending on the sign of the detuning) and a zero potential but no more both as a potential barrier and a potential well as it is the case for the usual cold two-level atom micromaser [M. O. Scully, G. M. Meyer, and H. Walther, Phys. Rev. Lett. 76, 4144 (1996)]. This introduces interesting options for engineering the interaction between the cold atoms and the cavity. The elimination of the spontaneous emission solves a major issue of the conventional cold two-level atom micromaser as the transit time of cold atoms inside and in the vicinity of the cavity is usually much larger than the atomic level lifetimes. It is also shown that the cold atom regime is very sensitive to the sign of the detuning (in contrast to the hot atom regime) and that, according to this sign, the cavity may speed up or slow down the incident three-level atoms after their interaction with the field.
Disciplines :
Physics
Author, co-author :
Martin, John  ;  Université de Liège - ULiège > Département de physique > Physique des atomes froids
Bastin, Thierry  ;  Université de Liège - ULiège > Département de physique > Physique des atomes froids
Language :
English
Title :
Cold three-level atom micromaser in the far-detuning regime
Publication date :
2007
Journal title :
Physical Review. A, Atomic, molecular, and optical physics
ISSN :
1050-2947
eISSN :
1094-1622
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
75
Pages :
053820:1-9
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 November 2009

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