Phase separated charge density wave phase in two species extended Bose-Hubbard model

Abstract

We study the quantum phase transitions in a two component bose-mixture in a one-dimensional optical lattice. The calculations have been performed in the framework of the extended Bose-Hubbard model using the finite size density matrix renormalization group method. We obtain different phase transitions for the system for integer filling. When the inter-species on-site and the nearest neighbor interactions are larger than the intra-species on-site and also the nearest neighbor interactions, the system exhibits a phase separated charge density wave (PSCDW) order that is characterized by the two species being spatially separated and existing in the density wave phases.

References in corpus (23)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Theory of Bose-Einstein condensation in trapped gases
• Cold bosonic atoms in optical lattices
• The density-matrix renormalization group
• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Bose-Einstein condensation of chromium
• Transition from a strongly interacting 1D superfluid to a Mott insulator
• Experimental Study of the BEC-BCS Crossover Region in Lithium 6
• A two atomic species superfluid
• The one-dimensional Bose-Hubbard Model with nearest-neighbor interaction
• Phase diagram of two-component bosons on an optical lattice
• Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
• Hidden order in 1D Bose insulators
• Degenerate Bose-Bose mixture in a three-dimensional optical lattice
• Commensurate Two-Component Bosons in Optical Lattice: Groundstate Phase Diagram
• Collisional properties of ultracold K-Rb mixtures
• Supersolid phases in the one dimensional extended soft core Bosonic Hubbard model
• Superfluid-insulator transitions of two-species Bosons in an optical lattice
• Phase separation in a two species Bose mixture
• Commensurate mixtures of ultra-cold atoms in one dimension
• Phase separations of bosonic mixtures in optical lattices from macroscopic to microscopic scales
• Superfluid, Mott-Insulator, and Mass-Density-Wave Phases in the One-Dimensional Extended Bose-Hubbard Model
• Sympathetic cooling and growth of a Bose-Einstein condensate

Cited by in corpus (7)

• Quantum phases of constrained dipolar bosons in coupled one-dimensional optical lattices
• Photonic analogue of Josephson effect in a dual-species optical-lattice cavity
• Component separation of two-component fermion clouds in a spin-dependent external potential by spin-density-functional theory
• Mott insulator phases of non-locally coupled bosons in bilayer optical superlattices
• The demixing of the two-component fermions in optical lattices under a spin-dependent external potential
• Out-of-Equilibrium Dynamics in the Two-Component Bose-Hubbard Model
• Emergent supercounterfluid and quantum phase diagram of two-component interacting bosons in one-dimensional optical lattice