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oai:docta.ucm.es:20.500.14352/596742023-08-25T12:40:37Zcom_20.500.14352_14col_20.500.14352_15

Zeno and anti-Zeno effects in multimode parametric down-conversion Luis Aina, Alfredo 535 Quantum zeno Engineered reservoirs Spontaneous decay Acceleration Decoherence Inhibition Light Field Óptica (Física) 2209.19 Óptica Física ©2002 The American Physical Society. I thank Professor J. Peřina and Dr. J. Řeháček for a careful reading of the manuscript and valuable suggestions. 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. Depto. de Óptica Fac. de Ciencias Físicas TRUE pub 2023-06-20T20:08:49Z 2023-06-20T20:08:49Z 2002-07-02 journal article https://hdl.handle.net/20.500.14352/59674 1050-2947 10.1103/PhysRevA.66.012101 eng open access application/pdf American Physical Society