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

# metadata.dc.description.abstract[].value
We 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.

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
(lambda)(phi)4 theory in a time-dependent space-time