Decoherence to the Casimir effect?

In this talk I would like to discuss an apparent tension between the superposition principle of quantum mechanics and the nature of the vacuum state in quantum field theory. The field theoretic vacuum is not only mathematically non-zero, but it also leads to an attractive force between two neutral metallic plates– the Casimir effect. Given the physical manifestation of the quantum vacuum fluctuations, it is natural to further investigate their properties. From an open quantum system perspective, it is not obvious whether or not these fluctuations can suppress electron-superpositions. On one hand, given that the electric field of the electromagnetic vacuum is a dynamical and a non-zero mathematical entity, it is natural to expect decoherence. On the other hand, any decoherence would imply departure from the most basic features of pre-QFT quantum mechanics. This is because decoherence due to vacuum fluctuations implies that even the superposition of an electron in empty space is not sustained, not even theoretically. A possible resolution is put forward in the talk and contrasted with previous results.