Stability of normal quantum-fluid mixtures

Abstract

Mixtures of quantum fluids, that is gases or liquids, are considered with the emphasis on the conditions characterizing the stability of the mixtures. The mixtures, that can be formed by cold atoms or molecules, are assumed to be quantum requiring the description using quantum techniques, but not so cold that to exhibit superfluidity or superconductivity. Reviewing the stability conditions of such normal quantum systems is important for the comparison of these conditions with the stability conditions of, e.g., Bose-condensed mixtures. The behavior of observable quantities under the stratification of quantum mixtures is discussed.

Latex file, 18 pages

References in corpus (10)

• Many-Body Physics with Ultracold Gases
• Finite Temperature Models of Bose-Einstein Condensation
• Representative statistical ensembles for Bose systems with broken gauge symmetry
• Fluctuations of composite observables and stability of statistical systems
• Self-Consistent Theory of Bose-Condensed Systems
• Nonequivalent operator representations for Bose-condensed systems
• Superfluid Fermi-Fermi mixture: phase diagram, stability, and soliton formation
• Counter-flow instability of a quantum mixture of two superfluids
• A compact experimental machine for studying tunable Bose-Bose superfluid mixtures
• Statistical systems with nonintegrable interaction potentials