# The effect of the interphase kinetics on the motion of a quantum crystal in superfluid liquid

## TL;DR

This paper investigates how interphase kinetics influence the motion of a quantum crystal falling in superfluid liquid, combining experimental data with a new interface dynamics model to explain observed behaviors.

## Contribution

It introduces a model that incorporates interface kinetics into the motion of quantum crystals, aligning numerical simulations with experimental observations.

## Key findings

- Interface kinetics significantly affect crystal hydrodynamics
- Numerical simulations match experimental pressure data
- Interphase dynamics are crucial for understanding crystal motion

## Abstract

The fall of a quantum crystal in the state of "burst-like growth" in a superfluid liquid is considered. The experimental data of the pressure variation in the container during the fall of a crystal are discussed. The model of the motion of the crystal is suggested taking the interface dynamics into account. The results for the numerical simulation of the fall of a crystal are consistent with the experimental data. We find a significant effect of the liquid-crystal interface kinetics on the hydrodynamics of the liquid flow encircling a crystal.