2010
DOI: 10.1088/1367-2630/12/3/033002
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Efficient production of polar molecular Bose–Einstein condensates via an all-optical R-type atom–molecule adiabatic passage

Abstract: We propose a scheme of "R-type" photoassociative adiabatic passage (PAP) to create polar molecular condensates from two different species of ultracold atoms. Due to the presence of a quasi-coherent population trapping state in the scheme, it is possible to associate atoms into molecules with a low-power photoassociation (PA) laser. One remarkable advantage of our scheme is that a tunable atom-molecule coupling strength can be achieved by using a time-dependent PA field, which exhibits larger flexibility than u… Show more

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Cited by 5 publications
(11 citation statements)
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“…Enhanced photoassociation rates combined with initially dense ensembles of ultracold atoms may allow one to reach these regimes. Direct adiabatic population transfer from atomic double-species Bose–Einstein condensate into molecular Bose–Einstein condensate may be used as demonstrated in a degenerate mixture between Rb atoms and molecules . Application of these methods to a mixture of different atomic species would allow one to reach the regime in which the dynamics are governed by the dipole–dipole and higher order multipole interactions.…”
Section: Perspectivesmentioning
confidence: 99%
“…Enhanced photoassociation rates combined with initially dense ensembles of ultracold atoms may allow one to reach these regimes. Direct adiabatic population transfer from atomic double-species Bose–Einstein condensate into molecular Bose–Einstein condensate may be used as demonstrated in a degenerate mixture between Rb atoms and molecules . Application of these methods to a mixture of different atomic species would allow one to reach the regime in which the dynamics are governed by the dipole–dipole and higher order multipole interactions.…”
Section: Perspectivesmentioning
confidence: 99%
“…On the other hand, a multilevel structure is treated as another alternative approach to realize the atommolecule transfer, due to its high selectivity and controllability for the use of intermediate auxiliary levels [28][29][30][31][32][33][34][35][36][37][38][39][40][41]. The first extension to a complex multilevel STI-RAP case was proposed by B. W. Shore in 1991 [28], and then more and more attentions are paid to various multilevel schemes, such as the alternating STIRAP in which all the even transitions occur before the odd ones [28], the straddling STIRAP in which a set of intense pulses corresponding to all intermediate states spans both the Stokes and pump pulses [30,34], and the (m + n) STI-RAP which contains m-photon pump transitions and nphoton Stokes transitions [40].…”
Section: Introductionmentioning
confidence: 99%
“…Decoherence at ultracold temperatures is a subject of particular interest and importance in light of the development of methods to manipulate ultracold gases, create and control ultracold molecules [1][2][3], and study ultracold collisions and chemical reactions [4]. Decoherence is inherently present in ultracold dynamics, and we study it semiclassically within the process of creation of diatomic KRb molecules from Feshbach weakly bound states.…”
mentioning
confidence: 99%
“…We consider a three-level Λ system interacting with a frequency comb do describe semiclassically the dynamics of the Feshbach molecules interacting with radiation resulting in their stepwise transformation into the ultracold molecules. The Λ system is formed by the energy level that include the Feshbach state, the excited, transitional state and the final, ultracold state, Fig (2).…”
mentioning
confidence: 99%