Dynamical creation of a supersolid in asymmetric mixtures of bosons

Abstract

We propose a scheme to dynamically create a supersolid state in an optical lattice, using an attractive mixture of mass-imbalanced bosons. Starting from a "molecular" quantum crystal, supersolidity is induced dynamically as an out-of-equilibrium state. When neighboring molecular wavefunctions overlap, both bosonic species simultaneously exhibit quasi-condensation and long-range solid order, which is stabilized by their mass imbalance. Supersolidity appears in a perfect one-dimensional crystal, without the requirement of doping. Our model can be realized in present experiments with bosonic mixtures that feature simple on-site interactions, clearing the path to the observation of supersolidity.

Accepted at Phys. Rev. Lett

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• Kinetic formation of trimers in a spinless fermionic chain
• Isospin Correlations in two-partite Hexagonal Optical Lattices
• Devil's staircase of topological Peierls insulators and Peierls supersolids