Published January 2013
| Submitted
Journal Article
Open
A motivic approach to phase transitions in Potts models
- Creators
- Aluffi, Paolo
- Marcolli, Matilde
Abstract
We describe an approach to the study of phase transitions in Potts models based on an estimate of the complexity of the locus of real zeros of the partition function, computed in terms of the classes in the Grothendieck ring of the affine algebraic varieties defined by the vanishing of the multivariate Tutte polynomial. We give completely explicit calculations for the examples of the chains of linked polygons and of the graphs obtained by replacing the polygons with their dual graphs. These are based on a deletion–contraction formula for the Grothendieck classes and on generating functions for splitting and doubling edges.
Additional Information
© 2012 Elsevier B.V. Received 22 April 2012. Accepted 6 September 2012. Available online 17 September 2012.Attached Files
Submitted - 1102.3462.pdf
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Additional details
- Eprint ID
- 36450
- Resolver ID
- CaltechAUTHORS:20130117-104305431
- Created
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2013-01-17Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field