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- W2600144476 abstract "We study macroscopic properties of a system of weakly interacting neutral bosons confined in a ring-shaped potential with a Josephson junction. We derive an effective low energy action for this system and evaluate its properties. In particular we find that the system possesses a set of metastable current-carrying states and evaluate the rates of transitions between these states due to macroscopic quantum tunneling. Finally we discuss signatures of different metastable states in the time-of-flight images and argue that the effect is observable within currently available experimental technique." @default.
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- W2600144476 date "2009-10-23" @default.
- W2600144476 modified "2023-09-23" @default.
- W2600144476 title "Metastable states and macroscopic quantum tunneling in a cold atom Josephson ring" @default.
- W2600144476 hasPublicationYear "2009" @default.
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