Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/22099
Title: 
Authors: 
Issue Date: 
2019
Citation: 
Victorin, N., Haug, T., Kwek, L.-C., Amico, L., & Minguzzi, A. (2019). Nonclassical states in strongly correlated bosonic ring ladders. Physical Review A, 99, Article 033616. https://doi.org/10.1103/PhysRevA.99.033616
Abstract: 
We study the ground state of a bosonic ring ladder under a gauge flux in the vortex phase, corresponding to the case where the single-particle dispersion relation has two degenerate minima. By combining exact diagonalization and an approximate fermionization approach we show that the ground state of the system evolves from a fragmented state of two single-particle states at weak interparticle interactions to a fragmented state of two Fermi seas at large interactions. Fragmentation is inferred from the study of the eigenvalues of the reduced single-particle density matrix as well as from the calculation of the fidelity of the states. We characterize these nonclassical states by the momentum distribution, the chiral currents, and the current-current correlations.
URI: 
ISSN: 
2469-9926 (print)
2469-9934 (online)
DOI: 
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Open
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With file
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