Classical linear chain behavior from dipolar droplets to supersolids

TL;DR

This paper explores the classical vibrational behavior of dipolar droplet arrays and their transition to supersolids, revealing how normal modes evolve and deviate under different dynamical conditions.

Contribution

It provides a comparative analysis of the normal modes in dipolar droplet chains and supersolids, highlighting the transition from classical to quantum behavior.

Findings

Isolated droplet crystals exhibit classical vibrational patterns.

Large kicks cause droplets to coalesce and deviate from classicality.

Supersolids show suppressed normal modes due to counter-flow dynamics.

Abstract

We investigate the classicality of linear dipolar droplet arrays through a normal mode analysis of the dynamical properties in comparison to the supersolid regime. The vibrational patterns of isolated-droplet crystals that time-evolve after a small initial kick closely follow the properties of a linear droplet chain. For larger kick velocities, however, droplets may coalesce and separate again, showing distinct deviations from classicality. In the supersolid regime the normal modes are eliminated by a counter-flow of mass between the droplets, signaled by a reduction of the center-of-mass motion.