Condensation driven by a quantum phase transition

TL;DR

This paper investigates how a quantum phase transition influences the thermodynamics and condensation behavior of a bosonic system, revealing patterns that persist at finite temperatures and highlighting the role of attraction in molecular condensate formation.

Contribution

It provides a theoretical analysis of the thermodynamic signatures of quantum phase transitions in bosonic systems, focusing on condensation phenomena near phase boundaries.

Findings

Identification of recognizable patterns at finite temperature near phase boundaries

Demonstration of finite-temperature condensation driven by a quantum phase transition

Foundation for studying attraction effects in molecular condensate formation

Abstract

The grand canonical thermodynamics of a bosonic system is studied in order to identify the footprint of its own high-density quantum phase transition. The phases displayed by the system at zero temperature establish recognizable patterns at finite temperature that emerged in the proximity of the boundary of the equilibrium diagram. The gaped phase induces a state of collectivism/condensation at finite temperature in which population cumulates into the ground state in spite of interacting attractively. The work sets the foundation to approach the effect of attraction in the formation of a molecular condensate.