# Simulation and observation of line-slip structures in columnar structures of soft spheres

## TL;DR

This paper combines computational modeling and experimental observation to study line-slip structures in columnar arrangements of soft spheres, revealing how pressure influences their formation and disappearance.

## Contribution

It introduces a detailed phase diagram for soft sphere columnar structures and experimentally confirms the presence of line slips under pressure.

## Key findings

- Line slips appear and vanish with increasing pressure.
- Experimental bubble columns exhibit predicted line slip behavior.
- Pressure controls the shearing of spiral arrangements.

## Abstract

We present the computed phase diagram of columnar structures of soft spheres under pressure, of which the main feature is the appearance and disappearance of line slips, the shearing of adjacent spirals, as pressure is increased. A comparable experimental observation is made on a column of bubbles under forced drainage, clearly exhibiting the expected line slip.