Condensation driven by a quantum phase transition

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 o...

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Bibliographic Details
Published in:Journal of physics. A, Mathematical and theoretical Mathematical and theoretical, 2022-04, Vol.55 (16), p.165001
Main Authors: Álvarez, Miguel Ángel, Reslen, Jose
Format: Article
Language:English
Subjects:
boson systems
condensation
phase transitions
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Summary: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 gapped phase underlines a state of collectivism/condensation at finite temperature in which particles coalesce into the ground state in spite of interacting attractively. The work establishes a framework that allows to study the phenomenon of condensation under the effect of attraction.
ISSN:1751-8113
1751-8121
DOI:10.1088/1751-8121/ac5509