Competing phases, phase separation, and coexistence in the extended one-dimensional bosonic Hubbard model
- Univ. of Nice (France). Non-Linear Institute of Nice (INLN); Inst. Univ. of France, Paris (France); National Univ. of Singapore (Singapore). Centre for Quantum Technologies
- Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
- Univ. of California, Davis, CA (United States). Physics Dept.
- National Univ. of Singapore (Singapore). Centre for Quantum Technologies; Ecole Normale Superieure, Paris (France); CNRS-UNS-NUS-NTU International Joint Research Unit (Singapore). Merlion MajuLab; National Univ. of Singapore (Singapore). Dept. of Physics
Here, we study the phase diagram of the one-dimensional bosonic Hubbard model with contact (U) and near neighbor (V ) interactions focusing on the gapped Haldane insulating (HI) phase which is characterized by an exotic nonlocal order parameter. The parameter regime (U, V and μ) where this phase exists and how it competes with other phases such as the supersolid (SS) phase, is incompletely understood. We use the Stochastic Green Function quantum Monte Carlo algorithm as well as the density matrix renormalization group to map out the phase diagram. The HI exists only at = 1, the SS phase exists for a very wide range of parameters (including commensurate fillings) and displays power law decay in the one body Green function were our main conclusions. Additionally, we show that at fixed integer density, the system exhibits phase separation in the (U, V ) plane.
- Research Organization:
- Univ. of California, Davis, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0001842; NA0001842-0
- OSTI ID:
- 1344111
- Alternate ID(s):
- OSTI ID: 1180554
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 90, Issue 20; ISSN 1098-0121
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Supersolid and pair correlations of the extended Jaynes-Cummings-Hubbard model on triangular lattices
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journal | September 2019 |
Supersolid and pair correlations of the extended Jaynes-Cummings-Hubbard model on triangular lattices | text | January 2016 |
Glassy Dynamics from Quark Confinement: Atomic Quantum Simulation of Gauge-Higgs Model on Lattice | text | January 2019 |
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