Tunneling dynamics of few bosons in a double well

Abstract

We study few-boson tunneling in a one-dimensional double well. As we pass from weak interactions to the fermionization limit, the Rabi oscillations first give way to highly delayed pair tunneling (for medium coupling), whereas for very strong correlations multi-band Rabi oscillations emerge. All this is explained on the basis of the exact few-body spectrum and without recourse to the conventional two-mode approximation. Two-body correlations are found essential to the understanding of the different tunnel mechanisms. The investigation is complemented by discussing the effect of skewing the double well, which offers the possibility to access specific tunnel resonances

10 pages, 8 figures

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Cited by in corpus (6)

• Composite fermionization of 1-D Bose-Bose mixtures
• Many-body theory for systems with particle conversion: Extending the multiconfigurational time-dependent Hartree method
• Excitations of attractive 1-D bosons: Binding vs. fermionization
• Interaction Driven Interband Tunneling of Bosons in the Triple Well
• Few-boson tunneling in a double well with spatially modulated interaction
• The single-atom box: bosonic staircase and effects of parity