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Bose Condensate in a Double-Well Trap: Ground State and Elementary Excitations

L. Salasnich·A. Parola·L. Reatto
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Abstract

We study the Bose-Einstein condensate in the MIT double-well trap. We calculate the ground state density profile of $^{23}$Na atoms and the Bogoliubov spectrum of the elementary excitations as function of the strength of the double-well barrier. In particular, we analyze the behavior of quantum-mechanical collective excitations. Finally, we discuss the observability criteria for macroscopic quantum tunneling and macroscopic quantum self-trapping.

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L. Salasnich, A. Parola, L. Reatto. 1999-08-10. Bose Condensate in a Double-Well Trap: Ground State and Elementary Excitations. https://doi.org/10.1103/physreva.60.4171

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