%0 Journal Article
%T Finite temperature correlation function of two dissipative massive scalar ﬁelds: Thermoﬁeld approach
%J Iranian Journal of Astronomy and Astrophysics
%I Damghan University Press
%Z 2322-4924
%A Jafari, Marjan
%D 2017
%\ 12/01/2017
%V 4
%N 3
%P 223-230
%! Finite temperature correlation function of two dissipative massive scalar ﬁelds: Thermoﬁeld approach
%K massive scalar ﬁeld
%K correlation function
%K dissipative
%K thermoﬁeld dynamics
%R 10.22128/ijaa.2017.123
%X The present paper aims at investigating the manner of two dissipative massive scalar ﬁelds. Two massive scalar ﬁelds that interact with a reservoir were considered and a reservoir was modeled by continuum Klein-Gordon ﬁelds. The Lagrangian of the total system was canonically quantized and the dynamics of the system was determined using the Euler-Lagrange equation. Then, the explicit form of the quantum massive scalar ﬁelds in long-time limit were observed. The propagator of the system and correlation functions were calculated at ﬁnite temperature in the thermoﬁeld dynamics formalizem.
%U https://ijaa.du.ac.ir/article_123_f8de2feace3527d44611adc4fc6ff487.pdf