Phase Diagram of Bosons in a 2D Optical Lattice with infinite-range Cavity-mediated Interactions
arXiv:1701.01624 · doi:10.1103/PhysRevB.95.144501
Abstract
High-finesse optical cavity allows the establishment of long-range interactions between bosons in an optical lattice when most cold atoms experiments are restricted to short-range interactions. Supersolid phases have recently been experimentally observed in such systems. Using both exact quantum Monte Carlo simulations and Gutzwiller approximation, we study the ground state phase diagrams of a two-dimensional Bose-Hubbard model with infinite-range interactions which describes such experiments. In addition to superfluid and insulating Mott phases, the infinite-range checkerboard interactions introduce charge density waves and supersolid phases. We study here the system at various particle densities, elucidate the nature of the phases and quantum phase transitions, and discuss the stability of the phases with respect to phase separation. In particular we confirm the existence and stability of a supersolid phase detected experimentally.
9 pages, 12 figures
References in corpus (13)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Cold atoms in cavity-generated dynamical optical potentials
- Supersolid formation in a quantum gas breaking continuous translational symmetry
- Metastable states of a gas of dipolar bosons in a 2D optical lattice
- Bose-glass phases of ultracold atoms due to cavity backaction
- Nonequilibrium Phase Transition of Interacting Bosons in an Intra-Cavity Optical Lattice
- The Stochastic Green Function (SGF) algorithm
- Directed update for the Stochastic Green Function algorithm
- Ground-State Phase Diagram of the Two-Dimensional Extended Bose-Hubbard Model
- Thermal Phase Transitions of Strongly Correlated Bosons with Spin-Orbit Coupling
- Lattice bosons with infinite range checkerboard interactions
- Spectral properties and phase diagram of correlated lattice bosons in an optical cavity within the B-DMFT
Cited by in corpus (43)
- Cavity QED with Quantum Gases: New Paradigms in Many-Body Physics
- Metastability and avalanche dynamics in strongly-correlated gases with long-range interactions
- Long-range interactions and symmetry-breaking in quantum gases through optical feedback
- Superfluid--Mott insulator transition of ultracold superradiant bosons in a cavity
- Numerically exact treatment of many body self-organization in a cavity
- Pathway to chaos through hierarchical superfluidity in a cavity-BEC system
- Quantum relaxation and metastability of lattice bosons with cavity-induced long-range interactions
- Many-body self-localization in a translation-invariant Hamiltonian
- Quantum XX-model with competing short- and long-range interactions: Phases and phase transitions in and out of equilibrium
- Supersolid phase of the extended Bose-Hubbard model with an artificial gauge field
- Magnetic orders in a Fermi gas induced by cavity-field fluctuations
- Self-bound droplet clusters in laser-driven Bose-Einstein condensates
- Mean-field phase diagram of ultracold atomic gases in cavity quantum electrodynamics
- Atomic self-organization emerging from tunable quadrature coupling
- Mean-field phases of an ultracold gas in a quasicrystalline potential
- Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices
- Theoretical methods to treat a single dissipative bosonic mode coupled globally to an interacting many body system
- Recent progress on quantum simulations of non-standard Bose-Hubbard models
- Light-induced quantum droplet phases of lattice bosons in multimode cavities
- Quantum critical behavior of entanglement in lattice bosons with cavity-mediated long-range interactions
- Dynamical off-equilibrium scaling across magnetic first-order phase transitions
- Persistent oscillations versus thermalization in the quench dynamics of quantum gases with long-range interactions
- Theoretical exploration of competing phases of lattice Bose gases in a cavity
- Bond order via cavity-mediated interactions
- Magnetic phase diagram and quantum phase transitions in a two-species boson model
- Ground states of 2D tilted dipolar bosons with density-induced hopping
- Staggered Ground States in an Optical Lattice
- Controlling the dynamics of atomic correlations via the coupling to a dissipative cavity
- Haldane Insulator in the 1D Nearest-Neighbor Extended Bose-Hubbard Model with Cavity-Mediated Long-Range Interactions
- The effect of disorder on the phase diagrams of hard-core lattice bosons with cavity-mediated long-range and nearest-neighbor interactions
- Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices
- Tunable boson-assisted finite-range interaction and engineering Majorana corner modes in optical lattices
- Quantum phases of lattice dipolar bosons coupled to a high-finesse cavity
- Quantum noise in a transversely pumped cavity Bose--Hubbard model
- Phase diagrams of the disordered Bose-Hubbard model with cavity-mediated long-range and nearest-neighbor interactions
- Self-organized cavity bosons beyond the adiabatic elimination approximation
- Temporal bistability in the dissipative Dicke-Bose-Hubbard system
- Energy barriers between metastable states in first order quantum phase transitions
- Staggered quantum phases of dipolar bosons at finite temperatures
- From Light-Cone to Supersonic Propagation of Correlations by Competing Short- and Long-Range Couplings
- Master Equation for a Quantum Gas of Polarizable Particles in Cavities
- Finding the ground states of symmetric infinite-dimensional Hamiltonians: explicit constrained optimizations of tensor networks
- Dynamics and fragmentation of bosons in an optical lattice inside a cavity using Wannier and position bases