Variational approximations for correlation functions in quantum field theories

DOI10.1006/aphy.1999.5978zbMath0972.81091arXivhep-th/9909211OpenAlexW3123080099MaRDI QIDQ1580515

Cécile Martin

Publication date: 18 November 2001

Published in: Annals of Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/hep-th/9909211

zbMATH Keywords

Gaussian density operatorinitial thermal statescalar \(\Phi^4\) fieldsymmetric phasetwo-time equilibrium

Mathematics Subject Classification ID

Model quantum field theories (81T10) Time-dependent statistical mechanics (dynamic and nonequilibrium) (82C99)

Related Items (1)

Correlation functions from a unified variational principle: trial Lie groups

Cites Work

• Unnamed Item
• Variational approach to multi-time correlation functions
• Time-dependent variational principle for the expectation value of an observable: mean-field applications
• The Poisson structure of the mean-field equations in the \(\varphi^4\) theory
• Brownian Motion of a Quantum Oscillator

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