Exotic phase separation in one-dimensional hard-core boson system with two- and three-body interactions
arXiv:1407.6462 · doi:10.1140/epjb/e2015-60112-8
Abstract
We investigate the ground state phase diagram of hard-core boson system with repulsive two-body and attractive three-body interactions in one-dimensional optic lattice. When these two interactions are comparable and increasing the hopping rate, physically intuitive analysis indicates that there exists an exotic phase separation regime between the solid phase with charge density wave order and superfluid phase. We identify these phases and phase transitions by numerically analyzing the density distribution, structure factor of density-density correlation function, three-body correlation function and von Neumann entropy estimator obtained by density matrix renormalization group method. These exotic phases and phase transitions are expected to be observed in the ultra-cold polar molecule experiments by properly tuning interaction parameters, which is constructive to understand the physics of ubiquitous insulating-superconducting phase transitions in condensed matter systems.
References in corpus (10)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
- Charge order driven by Fermi-arc instability in Bi2201
- Spreading of correlations and entanglement after a quench in the one-dimensional Bose-Hubbard model
- Atomic three-body loss as a dynamical three-body interaction
- Ground-State Fidelity and Bipartite Entanglement in the Bose-Hubbard Model
- Emerging Bosons with Three-Body Interactions from Spin-1 Atoms in Optical Lattices
- Effective three-body interactions via photon-assisted tunneling in an optical lattice
- Solids and supersolids of three-body interacting polar molecules in an optical lattice