Phase separations of bosonic mixtures in optical lattices from macroscopic to microscopic scales

Abstract

Mixtures of cold bosonic atoms in optical lattices undergo phase separations on different length scales with increasing inter-species repulsion. As a general rule, the stronger the intra-species interactions, the shorter is this length scale. The wealth of phenomena is documented by illustrative examples on both superfluids and Mott-insulators.

12 pages, 3 figures

References in corpus (3)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Instabilities in binary mixtures of one-dimensional quantum degenerate gases
• Best mean-field for condensates

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• Doping a lattice-trapped bosonic species with impurities: From ground state properties to correlated tunneling dynamics
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• The Miscible-Immiscible Quantum Phase Transition in Coupled Two-Component Bose-Einstein Condensates in 1D Optical Lattices
• Cold atoms in real-space optical lattices
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• Quantum correlations and spatial localization in trapped one-dimensional ultra-cold Bose-Bose-Bose mixtures
• Effects Beyond Center-of-Mass Separability in a Trapped Bosonic Mixture: Exact Results
• Coupled-cluster theory for trapped bosonic mixtures
• Miscibility-Immiscibility transition of strongly interacting bosonic mixtures in optical lattices