Quantum crystallography of Rydberg-dressed Bose gases on a square lattice

Abstract

We numerically investigate the quantum crystallographic phases of a Rydberg-dressed Bose gas loaded on a square lattice by using the mean-field Gross--Pitaevskii model. For a relatively weak lattice confinement, the phases of ground state undergo amorphism, polycrystal, and polymorphism following the increase of the blockade radius, and if the confinement is stronger, a single crystal with a specific filling factor will be formed. In order to distinctively characterize these phases, the structure function is also studied. In such an anisotropic system, we report that the first diagonal element of the superfluid-fraction tensor should be a measurable quantity, and an anisotropy parameter can be defined. In addition, for such crystallographic phases, the interaction potential can manifest where the grain boundaries appear.

6 pages, 4 figures

References in corpus (16)

• A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas
• Bose-glass phases of ultracold atoms due to cavity backaction
• Coexisting ordinary elasticity and superfluidity in a model of defect-free supersolid
• Mean-field and stability analysis of two-dimensional flowing soft-core bosons modeling a supersolid
• Theory of the superglass phase
• Supersolid phases of cold atom assemblies
• Critical Properties of the Superfluid - Bose Glass Transition in Two Dimensions
• Nonclassical rotational inertia for a supersolid under rotation
• Quantum Critical Scaling of Dirty Bosons in Two Dimensions
• Superfluid/Bose-glass transition in one dimension
• Equilibrium phases of two-dimensional bosons in quasi-periodic lattices
• Bose-Einstein supersolid phase for a novel type of momentum dependent interaction
• Bounds for the Superfluid Fraction from Exact Quantum Monte Carlo Local Densities
• Leggett's bound for amorphous solids
• Superfluid-insulator transition of two-dimensional disordered Bose gases
• Dressing of Ultracold Atoms by their Rydberg States in a Ioffe-Pritchard Trap

Cited by in corpus (2)

• Self-organized structures of two-component laser fields and their active controls in a cold Rydberg atomic gas
• Structural Phase Transitions of Optical Patterns in Atomic Gases with Microwave Controlled Rydberg Interactions