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Nonlinearity-assisted quantum tunnelling in a matter-wave interferometer

Li (Lee), Chaohong; Ostrovskaya, Elena; Kivshar, Yuri


We investigate the nonlinearity-assisted quantum tunnelling and formation of nonlinear collective excitations in a matter-wave interferometer, which is realized by the adiabatic transformation of a double-well potential into a single-well harmonic trap. In contrast to the linear quantum tunnelling induced by the crossing (or avoided crossing) of neighbouring energy levels, the quantum tunnelling between different nonlinear eigenstates is assisted by the nonlinear mean-field interaction. When...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Journal of Physics B: Atomic, Molecular and Optical Physics
DOI: 10.1088/0953-4075/40/21/010


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