Landau criterion in a Bose-Condensed Sodium Gas

TL;DR

This paper presents a theoretical model for superfluidity in a Bose-Condensed Sodium gas, aligning well with experimental data and providing calculations for the speed of sound in the system.

Contribution

It introduces a new theoretical approach to describe superfluidity in sodium Bose gases and validates it against experimental observations.

Findings

The model accurately predicts the superfluid region in sodium Bose gases.

Calculated speed of sound matches experimental measurements.

Theoretical predictions align with observed superfluid behavior.

Abstract

In light of the experimental evidence for the existence of a superfluid region in a Bose--Condensed Sodium gas a theoretical model is put forward. It will be shown that the predictions of the present work do match with the extant experimental readouts. As a by product we also calculate the speed of sound and compare it against the current experimental results.