Sergio De Filippo and Filippo Maimone

Dipartimento di Fisica "E.R. Caianiello", Universitá di Salerno, INFM UdR Salerno, INFN Sezione di Napoli, Gruppo Collegato di Salerno, Via S.Allende, I-84081 Baronissi (SA), Italy.
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Received: 30 June 2003 / Accepted: 23 December 2003 / Published: 16 March 2004

Abstract: The localizing properties and the entropy production of the Newtonian limit of a nonunitary version of fourth order gravity are analyzed. It is argued that pure highly unlocalized states of the center of mass motion of macroscopic bodies rapidly evolve into unlocalized ensembles of highly localized states. The localization time and the final entropy are estimated.

Keywords: decoherence; localization and gravity.