Dustin Lazarovici - Nonlocal Vacuum Phenomena in the Many-Worlds Interpretation
Lev Vaidman - Transfer of quantum information in teleportation
Open discussion
Abstracts
Nonlocal Vacuum Phenomena in the Many-Worlds Interpretation
Dustin Lazarovici (The Technion)
Two of the main arguments claimed in favor of the Many-Worlds Interpretation are that it a) avoids nonlocal interactions and b) extends straightforwardly to relativistic quantum mechanics and quantum field theory. The talk (presenting joint work in progress with Christian Beck) challenges whether both claims can be true at the same time. The reason is that, in relativistic quantum (field) theory, we encounter new kinds of nonlocal phenomena related to particle creation and the fact that the vacuum is a “superentangled” state. We argue that those may amount to action-at-a-distance even under an Everettian interpretation, though a precise answer requires more clarity about the ontology of the theory.
Transfer of quantum information in teleportation
Lev Vaidman (TAU)
The controversial issue of information transfer in quantum teleportation procedure is analyzed in the framework of the many-worlds interpretation of quantum mechanics. In contrast to the claims of Deutsch & Hayden 2000, it is argued that quantum information, considered as a measurable property for an observer in a particular world, is transferred in a nonlocal way in the teleportation process. This, however, does not lead to action at a distance on the level of the universe which includes all parallel worlds.
Looking forward to seeing you there,
Guy.