Critical behaviour of quantum systems with quenched point impurities

The effect of quenched point impurities on the critical behaviour of a number of condensed matter systems described by quantum field models is studied by means of the ∈-analysis to order ∈ 1. The critical dynamic exponent z is calculated. It acquires corrections of order ∈ 1 for systems with finite...

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Bibliographic Details
Published inPhysics letters. A Vol. 106; no. 4; pp. 175 - 178
Main Authors Korutcheva, E.R., Uzunov, D.I.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.1984
Elsevier Science
Subjects
Condensed matter: structure, mechanical and thermal properties
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
General studies of phase transitions
Physics
Theoretical study
Phase transformation
Critical exponent
Impurity
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Summary:The effect of quenched point impurities on the critical behaviour of a number of condensed matter systems described by quantum field models is studied by means of the ∈-analysis to order ∈ 1. The critical dynamic exponent z is calculated. It acquires corrections of order ∈ 1 for systems with finite critical temperatures ( T c ≠ 0). The quantum ( T c = 0) critical behaviour is unstable with respect to impurity influence.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(84)90312-8