Jeans Instability in Superfluids

TL;DR

This paper investigates how gravity influences sound modes in superfluids, deriving a generalized Jeans instability condition and discussing possible experimental observations.

Contribution

It introduces a generalized Jeans instability criterion for superfluids, extending the classical understanding from normal fluids.

Findings

Derived a new instability condition for superfluids under gravity

Generalized the classical Jeans instability to superfluid systems

Discussed potential experimental implications of the instability

Abstract

We analyze the effect of a gravitational field on the sound modes of superfluids. We derive an instability condition that generalizes the well known Jeans instability of the sound mode in normal fluids. We discuss potential experimental implications.