Few-boson dynamics in double wells: From single-atom to correlated-pair tunneling

Abstract

We investigate few-boson tunneling in a one-dimensional double well, covering the full crossover from weak interactions to the fermionization limit of strong correlations. Based on exact quantum-dynamical calculations, it is found that the tunneling dynamics of two atoms evolves from Rabi oscillations to correlated pair tunneling as we increase the interaction strength. Near the fermionization limit, fragmented-pair tunneling is observed and analyzed in terms of the population imbalance and two-body correlations. For more atoms, the tunneling dynamics near fermionization is shown to be sensitive to both atom number and initial configuration.

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References in corpus (1)

• Exact coherent states of a harmonically confined Tonks-Girardeau gas

Cited by in corpus (6)

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• Composite fermionization of 1-D Bose-Bose mixtures
• Tunneling dynamics of few bosons in a double well
• Magnetic ordering and quantum statistical effects in strongly repulsive Fermi-Fermi and Bose-Fermi mixtures
• Excitations of attractive 1-D bosons: Binding vs. fermionization
• Ground-state properties of few-Boson system in a one-dimensional hard wall potential with split