Order-Parameter Correlations within the Screening Approximation
- 14 August 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 29 (7), 413-416
- https://doi.org/10.1103/physrevlett.29.413
Abstract
A central problem in the theory of phase transitions is the calculation of the order-parameter correlation function. Here we study the correlation function of an -component order parameter whose configuration energy is determined by the usual Landau functional. Using a screening approximation, we obtain a simple closed form for the Fourier transform of the correlation function and examine its dependence on wave vector and the reciprocal correlation length .
Keywords
This publication has 1 reference indexed in Scilit:
- Correlation Functions and the Critical Region of Simple FluidsJournal of Mathematical Physics, 1964