Nonperturbative Calculation of Shear Viscosity from the Basis of the Keldysh Field in Thermal Ф<sup>4</sup> Theory

Chin. Phys. Lett.

2002, Vol. 19

Issue (8): 1058-1060 DOI:

Original Articles

Nonperturbative Calculation of Shear Viscosity from the Basis of the Keldysh Field in Thermal Ф⁴ Theory

WANG En-Ke

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079

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WANG En-Ke 2002 Chin. Phys. Lett. 19 1058-1060

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Abstract The nonperturbative result of the shear viscosity in thermal
Ф⁴ theory is given by solving the Bethe-Salpeter (B-S) integral equation in the closed time formalism in real time. By introducing a two-legs-truncated Green function it is shown that the B-S equation is decoupled in the basis of Keldysh field.

Keywords: 11.10.Wx 51.20.+d 52.25.Fi

Published: 01 August 2002

PACS:	11.10.Wx	(Finite-temperature field theory)
	51.20.+d	(Viscosity, diffusion, and thermal conductivity)
	52.25.Fi	(Transport properties)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I8/01058

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