Partition function zeros at first-order phase transitions: A general analysis

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dc.creatorBiskup, Marek
dc.creatorBorgs, Christian
dc.creatorChayes, Jennifer T.
dc.creatorKleinwaks, Logan J.
dc.creatorKotecky, Roman
dc.date2003-04-03
dc.date2004-05-07
dc.date.accessioned2026-07-07T04:29:57Z
dc.date.available2026-07-07T04:29:57Z
dc.descriptionWe present a general, rigorous theory of partition function zeros for lattice spin models depending on one complex parameter. First, we formulate a set of natural assumptions which are verified for a large class of spin models in a companion paper [BBCKK2, math-ph/0304007]. Under these assumptions, we derive equations whose solutions give the location of the zeros of the partition function with periodic boundary conditions, up to an error which we prove is (generically) exponentially small in the linear size of the system. For asymptotically large systems, the zeros concentrate on phase boundaries which are simple curves ending in multiple points. For models with an Ising-like plus-minus symmetry, we also establish a local version of the Lee-Yang Circle Theorem. This result allows us to control situations when in one region of the complex plane the zeros lie precisely on the unit circle, while in the complement of this region the zeros concentrate on less symmetric curves.
dc.description52 pages, 3 eps figs, to appear in Commun. Math. Phys.; see also math-ph/0304007 and math-ph/0004003
dc.identifierhttps://arxiv.org/abs/math-ph/0304007
dc.identifierhttp://arxiv.org/abs/math-ph/0304007
dc.identifierCommun. Math. Phys. 251 (2004), no. 1, 79-131
dc.identifierdoi:10.1007/s00220-004-1169-5
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/57349
dc.subjectMathematical Physics
dc.subjectComplex Variables
dc.subject82B05; 82B26; 26C10; 82B20
dc.titlePartition function zeros at first-order phase transitions: A general analysis
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