Quantum Fluctuations Affect the Critical Properties of Noble Gases

TL;DR

This paper demonstrates that quantum fluctuations significantly influence the critical properties of noble gases, especially near the critical temperature, by using a novel quantum Langevin transport simulation method.

Contribution

It introduces a quantum Langevin transport approach that accounts for quantum fluctuations in simulating noble gas atom interactions.

Findings

Quantum fluctuations alter the mass distribution of atomic clusters near the critical temperature.

Quantum effects are significant in molecular-dynamics simulations of cluster formation.

The method provides a new way to incorporate quantum fluctuations in many-body simulations.

Abstract

Interacting argon atoms are simulated with a recently developed quantum Langevin transport treatment that takes approximate account of the quantum fluctuations inherent in microscopic many-body descriptions based on wave packets. The mass distribution of the atomic clusters is affected significantly near the critical temperature and thus it may be important to take account of quantum fluctuations in molecular-dynamics simulations of cluster formation processes.