Collision-Dependent Atom Tunnelling Rate in Bose-Einstein Condensates

Abstract

We show that the interaction (cross-collision) between atoms trapped in distinct sites of a double-well potential can significantly increase the atom tunneling rate for special trap configurations leading to an effective linear Rabi regime of population oscillation between the trap wells. The inclusion of cross-collisional effects significantly extends the validity of the two-mode model approach allowing it to be alternatively employed to explain the recently observed increase of tunneling rates due to nonlinear interactions.

4 pages, 2 figures. Replaced with improved version

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Cited by in corpus (3)

• Dynamics of a Bose-Einstein condensate in a symmetric triple-well trap
• Quantum simulation of the Anderson Hamiltonian with an array of coupled nanoresonators: delocalization and thermalization effects
• Delocalization and superfluidity of ultracold bosonic atoms in a ring lattice