Adiabatic tracking for photo- and magneto-association of Bose-Einstein condensates with Kerr nonlinearities / M. Gevorgyan [et al.]

Уровень набора: The European Physical Journal D, Scientific Journal = 1999-Альтернативный автор-лицо: Gevorgyan, M., Mariam;Guerin, S., S.;Leroy, C., Claude;Ishkhanyan, A., physicist, Associate Scientist of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, 1960-, Artur;Hans-Rudolf, J., JauslinКоллективный автор (вторичный): Национальный исследовательский Томский политехнический университет (ТПУ), Физико-технический институт (ФТИ), Кафедра общей физики (ОФ)Язык: английский ; резюме, eng.Резюме или реферат: We develop the method of adiabatic tracking for photo- and magneto-association of BoseEinstein atomic condensates with models that include Kerr type nonlinearities. We show that the inclusion of these terms can produce qualitatively important modifications in the adiabatic dynamics, like the appearance of bifurcations, in which the trajectory that is being tracked loses its stability. As a consequence the adiabatic theorem does not apply and the adiabatic transfer can be strongly degraded. This degradation can be compensated by using fields that are strong enough compared with the values of the Kerr terms. The main result is that, despite these potentially detrimental features, there is always a choice of the detuning that leads to an efficient adiabatic tracking, even for relatively weak fields..Примечания о наличии в документе библиографии/указателя: [References: 44 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | конденсаты | адиабатическая модель | нелинейность | бифуркация Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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[References: 44 tit.]

We develop the method of adiabatic tracking for photo- and magneto-association of BoseEinstein atomic condensates with models that include Kerr type nonlinearities. We show that the inclusion of these terms can produce qualitatively important modifications in the adiabatic dynamics, like the appearance of bifurcations, in which the trajectory that is being tracked loses its stability. As a consequence the adiabatic theorem does not apply and the adiabatic transfer can be strongly degraded. This degradation can be compensated by using fields that are strong enough compared with the values of the Kerr terms. The main result is that, despite these potentially detrimental features, there is always a choice of the detuning that leads to an efficient adiabatic tracking, even for relatively weak fields.

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