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Vacuum effects in quantum field theory |
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| Authors: | V de Alfaro S Fubini G Furlan |
| Institution: | 1. Istituto di Fisica Teorica dell'Università, Torino, Italy 2. I.N.F.N. Sezione di Torino, I-10100, Torino, Italy 3. CERN, CH-1211, Geneva 23, Switzerland 4. Istituto di Fisica Teorica dell'Università, Trieste, Italy 5. T.N.F.N. Sezione di Trieste and Scuola Internazionale Superiore di Studi Avanzati, I-34100, Trieste, Italy |
| Abstract: | We discuss some consequences of applying a procedure developed in a previous paper, to implement the conformal and general invariance of the functional integral. It is shown that spontaneous breaking of those symmetries is unavoidable; we consider in particular the linear σ-model, in the conformal limit, and the Einstein gravitation and derive some simple relations among the vacuum expectation value, a phenomenological cut-off and the Lagrangian constants. |
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