The Omega Effect as a Discriminant for Space-Time Foam

TL;DR

This paper explores how space-time foam could cause CPT violation and affect entanglement in neutral meson pairs, introducing the omega effect as a potential signature of quantum gravitational decoherence.

Contribution

It analyzes two models of space-time foam, demonstrating that non-critical string theory can naturally produce the omega effect, unlike thermal bath models.

Findings

Non-critical string theory model produces the omega effect.

Thermal bath model is resistant to generating the effect.

Potential link between space-time foam and CPT violation.

Abstract

If there is CPT violation, the nature of entanglement for neutral meson pairs produced in meson factories may, on general grounds, be affected. The new form of entanglement is the omega effect. Gravitational decoherence, due to space-time foam, may be one route for deviations from CPT invariance. Two models of space-time foam are considered. One, based on non-critical string theory, is able to produce the new correlations in a natural way. The other, based on the paradigm of thermal-like baths, is shown to be surprisingly resistant to producing the effect even on exercising a total freedom of choice for the state of the bath