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zbMath0987.81068MaRDI QIDQ2735006

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Publication date: 2 July 2002

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zbMATH Keywords

Green functions Jensen's inequality supersymmetry nonlocal effective action polaron problem relativistic quantum field theory Wick-Cutkosky model Grassmann trajectories non-perturbative results retarded quadratic action

Mathematics Subject Classification ID

Model quantum field theories (81T10) Supersymmetric field theories in quantum mechanics (81T60) Nonperturbative methods of renormalization applied to problems in quantum field theory (81T16)

Related Items (1)

On the best quadratic approximation in Feynman's path integral treatment of the polaron

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