Analogy between a two-well Bose-Einstein condensate and atom diffraction
- 27 May 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 67 (5) , 053611
- https://doi.org/10.1103/physreva.67.053611
Abstract
We compare the dynamics of a Bose-Einstein condensate in two coupled potential wells with atoms diffracting from a standing light wave. The corresponding Hamiltonians have an identical appearance, but with a different set of commutation rules. Well-known diffraction phenomena as Pendellösung oscillations between opposite momenta in the case of Bragg diffraction, and adiabatic transitions between momentum states are shown to have analogies in the two-well case. They represent the collective exchange of a fixed number of atoms between the wells.Keywords
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