Journal
PHYSICAL REVIEW A
Volume 106, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.106.L051302
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Funding
- [ANR-17-CE30-0024]
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This study investigates the impact of many-body quantum interference and matter-wave revivals on physical observables in an ultracold bosonic system in an optical lattice. In the case of the Bose-Hubbard dimer, a interplay between weak intersite tunneling and strong on-site interactions leads to unique quantum dynamics not seen in mean-field approaches. The effects of cooperative matter-wave interference on occupancy oscillations and coherence, as well as the resurgent revivals and synchronization of revival peaks and occupancy oscillation peaks, are demonstrated.
We study the consequences of matter-wave revivals associated with many-body quantum interferences on physical observables for an ultracold bosonic system in an optical lattice. For the Bose-Hubbard dimer, we show that the interplay between weak intersite tunneling and strong on-site interactions can lead to the quantum dynamics of a density wave displaying several features not found in the mean-field limit. We demonstrate in particular the influence of these phenomena on occupancy oscillations and coherence. We furthermore observe resurgent revivals and a (anti)synchronization of revival peaks and occupancy oscillation peaks, which are the signatures of cooperative matter-wave interference effects that alternate between constructive and destructive features leading to the peak revival behaviors. The impact of such many-body quantum interference phenomena in various experimentally accessible observables is presented, paving the way for their detection in future ultracold-atom experiments.
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