Thermal instability, evaporation, and thermodynamics of one-dimensional liquids in weakly interacting Bose-Bose mixtures

We study the low-temperature thermodynamics of weakly-interacting uniform liquids in one-dimensional attractive Bose-Bose mixtures.~The Bogoliubov approach is used to simultaneously describe quantum and thermal fluctuations. First, we investigate detail two different mechanisms driving liquid-to-gas transition, dynamical instability evaporation, draw phase diagram. Then, compute main thermodynamic quantities liquid, such as chemical potential, Tan's contact, adiabatic sound velocity specific heat at constant volume. The strong dependence on temperature may be a precise probe for experiments liquids.