Phase transitions of the coherently coupled two-component Bose gas in a square optical lattice
arXiv:1705.02833 · doi:10.1103/PhysRevA.96.063623
Abstract
We investigate properties of an ultracold, two-component bosonic gas in a square optical lattice at unit filling. In addition to density-density interactions, the atoms are subject to coherent light-matter interactions that couple different internal states. We examine the influence of this coherent coupling on the system and its quantum phases by using Gutzwiller mean field theory as well as bosonic dynamical mean field theory. We find that the interplay of strong inter-species repulsion and coherent coupling affects the Mott insulator to superfluid transition and shifts the tip of the Mott lobe toward higher values of the tunneling amplitude. In the strongly interacting Mott regime, the resulting Bose-Hubbard model can be mapped onto an effective spin Hamiltonian that offers additional insights into the observed phenomena.
References in corpus (42)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Artificial gauge potentials for neutral atoms
- Light-induced gauge fields for ultracold atoms
- Observation of chiral edge states with neutral fermions in synthetic Hall ribbons
- Dynamical control of matter-wave tunneling in periodic potentials
- Synthetic gauge fields in synthetic dimensions
- Superfluid-insulator transition in a periodically driven optical lattice
- Counterflow Superfluidity of Two-Species Ultracold Atoms in a Commensurate Optical Lattice
- Classical bifurcation at the transition from Rabi to Josephson dynamics
- Phase diagram of two-component bosons on an optical lattice
- Coherent control of dressed matter waves
- Dynamical crystallization in a low-dimensional Rydberg gas
- Monte Carlo study of two-dimensional Bose-Hubbard model
- Dynamical Crystallization in the Dipole Blockade of Ultracold Atoms
- Dynamical response of a Bose-Einstein condensate to a discontinuous change in internal state
- Degenerate Bose-Bose mixture in a three-dimensional optical lattice
- An experimental and theoretical guide to strongly interacting Rydberg gases
- Superfluidity of Interacting Bosonic Mixtures in Optical Lattices
- Spin gradient thermometry for ultracold atoms in optical lattices
- Magnetic phases of two-component ultracold bosons in an optical lattice
- Bosonic Mott Insulator with Meissner Currents
- Rabi flopping induces spatial demixing dynamics
- Dynamical mean field solution of the Bose-Hubbard model
- Strong-coupling expansion for the momentum distribution of the Bose Hubbard model with benchmarking against exact numerical results
- Dynamical mean-field theory for bosons
- Phase-Dependent Spontaneous Spin Polarization and Bifurcation Delay in Coupled Two-Component Bose-Einstein Condensates
- Demixing Effects in Mixtures of Two Bosonic Species
- Tunable anisotropic magnetism in trapped two-component Bose gases
- Atom-molecule Rabi oscillations in a Mott insulator
- Coherent Atom-Molecule Oscillations in a Bose-Fermi Mixture
- Dressed States of a two component Bose-Einstein Condensate
- Manipulating the Speed of Sound in a Two-Component Bose-Einstein Condensate
- The Miscible-Immiscible Quantum Phase Transition in Coupled Two-Component Bose-Einstein Condensates in 1D Optical Lattices
- Condensation versus Long-range Interaction: Competing Quantum Phases in Bosonic Optical Lattice Systems at Near-resonant Rydberg Dressing
- Gap solitons in Rabi lattices
- Quantum magnetism of ultracold atoms with a dynamical pseudospin degree of freedom
- Feshbach-Stabilized Insulator of Bosons in Optical Lattices
- Black-hole lasing in coherently coupled two-component atomic condensates
- Magnetic phase transition in coherently coupled Bose gases in optical lattices
- Thermometry of bosonic mixtures in Optical Lattices via Demixing
- Quantum and Thermal Phase Transitions in a Bosonic Atom-Molecule Mixture in a Two-dimensional Optical Lattice