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Constraints, Fisher renormalization, and phase transitions in random‐field models
Author(s) -
Busiello G.
Publication year - 1996
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221970108
Subject(s) - ising model , statistical physics , phase transition , renormalization , random field , field (mathematics) , critical phenomena , renormalization group , physics , order (exchange) , phase (matter) , mathematics , condensed matter physics , mathematical physics , statistics , quantum mechanics , economics , finance , pure mathematics
We discuss the possibility that the critical behavior of the experimental random‐field Ising model may be interpreted as a constrained behavior. Emphasis is given to the problem of a first‐order phase transition which seems to be present in some experimental and theoretical results.