Vacuum decay by p-branes production¹

Lorenzo Sindoni²
Dipartimento di Fisica, Universita' degli Studi di Trieste,
via A. Valerio, 2 - I-34127 Trieste (TS), Italy

and

Stefano Ansoldi^3 4
Dipartimento di Matematica e Informatica, Universita' degli Studi di Udine,
and I.N.F.N. Sezione di Trieste,
via delle Scienze, 206 - I-33100 Udine (UD), Italy

 

Abstract:

We present a generalization to the $N$-dimensional case for the nucleation coefficient of a spherical $p$-brane, separating two (anti-)de Sitter spacetimes. We use a semiclassical approximation based on the analytical continuation to the Euclidean sector of a suitable effective action describing a $p$-brane in General Relativity.