Barra, Adriano, Galluzzi, Andrea, Guerra, Francesco, Pizzoferrato, Andrea and Tantari, Daniele (2014) Mean field bipartite spin models treated with mechanical techniques. The European Physical Journal B, Volume 87 (Number 3). doi:10.1140/epjb/e2014-40952-4 ISSN 1434-6028.

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Abstract

Inspired by a continuously increasing interest in modeling and framing complex systems in a thermodynamic rationale, in this paper we continue our investigation in adapting well-known techniques (originally stemmed in fields of physics and mathematics far from the present) for solving for the free energy of mean field spin models in a statistical mechanics scenario. Focusing on the test cases of bipartite spin systems embedded with all the possible interactions (self and reciprocal), we show that both the fully interacting bipartite ferromagnet, as well as the spin glass counterpart, at least at the replica symmetric level, can be solved via the fundamental theorem of calculus, trough an analogy with the Hamilton-Jacobi theory and lastly with a mapping to a Fourier diffusion problem. All these technologies are shown symmetrically for ferromagnets and spin-glasses in full details and contribute as powerful tools in the investigation of complex systems.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Mathematics
Journal or Publication Title:	The European Physical Journal B
Publisher:	Springer
ISSN:	1434-6028
Official Date:	24 March 2014
Dates:	Date Event 24 March 2014 Published 22 October 2013 Submitted
Volume:	Volume 87
Number:	Number 3
DOI:	10.1140/epjb/e2014-40952-4
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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