skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: FKG inequality for the Yukawa/sub 2/ quantum field theory

Journal Article · · J. Stat. Phys.; (United States)
DOI:https://doi.org/10.1007/BF01008048· OSTI ID:5586487

WE establish the FKG correlation inequality for the Euclidean scalar Yukawa/sub 2/ quantum field model and, when the Fermi mass is zero, for pseudoscalar Yukawa/sub 2/. To do so we approximate the quantum field model by a lattice spin system and show that the FKG inequality for this system follows from a positivity condition on the fundamental solution of the Euclidean Dirac equation with external field. We prove this positivity condition by applying the Vekua--Bers theory of generalized analytic functions.

Research Organization:
Mathematics Department, Texas A M University, College Station, Texas 77843
OSTI ID:
5586487
Journal Information:
J. Stat. Phys.; (United States), Vol. 22:2
Country of Publication:
United States
Language:
English