Covariant gaussian approximation. I. formalism

A. Kovner*, Baruch Rosenstein

*此作品的通信作者

研究成果: Article同行評審

43 引文 斯高帕斯(Scopus)

摘要

The variational Gaussian approximation is generalized to the time-dependent approach capable of giving time-dependent Greens functions. This covariant Gaussian approximation is represented, in full analogy with the classical approximation, as an initial truncation of the Dyson-Schwinger equations followed by functional differentiation of the effective action. Intuitively simple Schrödinger and Heisenberg pictures of the approximation are also discussed.

原文English
頁(從 - 到)2332-2342
頁數11
期刊Physical Review D
39
發行號8
DOIs
出版狀態Published - 1 1月 1989

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