%0 Journal Article
%A Luis Aina, Alfredo
%T Zeno and anti-Zeno effects in multimode parametric down-conversion
%D 2002
%@ 1050-2947
%U https://hdl.handle.net/20.500.14352/59674
%X We present a simple multimode analysis of the Zeno and anti-Zeno effects in spontaneous parametric down-conversion. In this process the input vacuum is an unstable state decaying into a reservoir of down-converted modes by emitting a pair of photons. We show that the Zeno and the anti-Zeno effects are two particular examples of quantum propagation depending on the effective spectrum of down-converted modes. We show that this evolution can be easily tailored on demand and that these quantum phenomena admit a very simple explanation in terms of standard interference concepts.
%~