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Thermodynamics of interacting systems: The role of the topology and collective effects

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Author(s):
Mamede, Iago N. ; Proesmans, Karel ; Fiore, Carlos E.
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW RESEARCH; v. 5, n. 4, p. 12-pg., 2023-12-22.
Abstract

We study a class of system composed of interacting unicyclic machines placed in contact with a hot and cold thermal baths subjected to a nonconservative driving worksource. Despite their simplicity, these models showcase an intricate array of phenomena, including pump and heat engine regimes as well as a discontinuous phase transition. We look at three distinctive topologies: a minimal and beyond minimal (homogeneous and heterogeneous interaction structures). The former case is represented by stark different networks ("all-to-all" interactions and only a central interacting to its neighbors) and present exact solutions, whereas homogeneous and heterogeneous structures have been analyzed by numerical simulations. We find that the topology plays a major role on the thermodynamic performance for smaller values of individual energies, in part due to the presence of first-order phase transitions. Contrariwise, the topology becomes less important as individual energies increases and results are well described by a system with all-to-all interactions. (AU)

FAPESP's process: 21/12551-8 - Stochastic thermodynamics and efficiency of interacting systems: A study via collisional, harmonic chains and phase transitions
Grantee:Iago Nascimento Mamede
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 21/03372-2 - Stochastic thermodynamics of phase transitions and periodically driven systems
Grantee:Carlos Eduardo Fiore dos Santos
Support Opportunities: Regular Research Grants
FAPESP's process: 23/00096-0 - Thermodynamics of interacting heat engines and Landauer principle
Grantee:Iago Nascimento Mamede
Support Opportunities: Scholarships abroad - Research Internship - Master's degree