TY - JOUR
T1 - Two-photon adiabatic passage in ultracold Rb interacting with a single nanosecond, chirped pulse
AU - Liu, Gengyuan
AU - Malinovskaya, Svetlana A.
N1 - Publisher Copyright:
© 2015 IOP Publishing Ltd.
PY - 2015/10/14
Y1 - 2015/10/14
N2 - A semiclassical, four-level model of a nanosecond, chirped pulse interacting with all optically accessible hyperfine states in an ultracold alkali atom, e.g., the 85Rb, is analyzed aiming at population inversion within 5S1/2 electronic state. The nature of two-photon adiabatic passage performed by a single pulse having the bandwidth prior to chirping significantly narrower than the hyperfine splitting of 5S1/2 state is investigated in the framework of the dressed state picture. It is shown that two dressed states are involved in the adiabatic dynamics of population inversion. The excited state manifold appeared to play an important mediating role in the mechanism of population transfer.
AB - A semiclassical, four-level model of a nanosecond, chirped pulse interacting with all optically accessible hyperfine states in an ultracold alkali atom, e.g., the 85Rb, is analyzed aiming at population inversion within 5S1/2 electronic state. The nature of two-photon adiabatic passage performed by a single pulse having the bandwidth prior to chirping significantly narrower than the hyperfine splitting of 5S1/2 state is investigated in the framework of the dressed state picture. It is shown that two dressed states are involved in the adiabatic dynamics of population inversion. The excited state manifold appeared to play an important mediating role in the mechanism of population transfer.
KW - Raman transitions
KW - adiabatic passage
KW - avoided crossing
KW - dressed states
KW - ultracold alkali atoms
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U2 - 10.1088/0953-4075/48/19/194001
DO - 10.1088/0953-4075/48/19/194001
M3 - Article
AN - SCOPUS:84940879447
SN - 0953-4075
VL - 48
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
IS - 19
M1 - 194001
ER -