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Thermodynamic properties of the φ4 lattice field theory near the Ising limit

✍ Scribed by Gunduz Caginalp

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
612 KB
Volume
126
Category
Article
ISSN
0003-4916

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✦ Synopsis

For a d-dimensional 4" lattice field theory consisting of N spins with nearest-neighbor interactions, the partition function is transformed for large bare coupling constant A into an Ising-like system with additional neighbor interactions. For d = 2 a mean field approximation is then used to estimate the difference in critical temperature between the lattice 4" field theory and its Ising limit (A = KJ). Expansions are obtained for the susceptibility and specific heat. The critical exponents are shown to be identical to the lsing exponents.

📜 SIMILAR VOLUMES

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