Quantum Gravity, CPT symmetry and Entangled States

Abstract

There may unique ("smoking-gun") signatures of the breakdown of CPT symmetry, induced in some models of Quantum Gravity entailing decoherence for quantum matter. Such effects can be observed in entangled states of neutral mesons via modifications of the respective Einstein-Podolsky-Rosen (EPR) correlators ("omega"-effect). In the talk I discuss experimental signatures and bounds of the omega-effect in Phi- and B-factories, and argue that the effect might be falsifiable at the next generation facilities.

Comments: 7 pages Latex, two eps figures incorporated, invited talk at EXA 2008 and LEAP 2008 joint Conference, Vienna (Austria), September 15-19 2008