(lambda)(phi)4 theory in a time-dependent space-time

Latorre, José IgnacioPascual, Pedro, 1934-2006Tarrach, R., 1948-2010-05-062010-05-0619860556-2821https://hdl.handle.net/2445/12413We study the triviality problem of λ φ 4 theory in a time-dependent space-time within a variational Gaussian approach. A unique, precarious ( λ B ∼-1/lnΛ) phase makes sense. As a consequence, λ R is compelled to lie in the range &, where & depends on the curvature.8 p.application/pdfeng(c) The American Physical Society, 1986Mecànica quànticaTeoria de camps (Física)Quantum theoryField theory (Physics)(lambda)(phi)4 theory in a time-dependent space-timeinfo:eu-repo/semantics/article10221info:eu-repo/semantics/openAccess