Workshop
The notion of locality in relational quantum mechanics
- Pierre Martin-Dussaud (Aix-Marseille Université, France)
Abstract
The term 'locality' is used in different contexts with different meanings. There have been claims that relational quantum mechanics is local, but it is not clear then how it accounts for the effects that go under the usual name of quantum non-locality. We will show that the failure of 'locality' in the sense of Bell, once interpreted in the relational framework, reduces to the existence of a common cause in an indeterministic context. In particular, there is no need to appeal to a mysterious space-like influence to understand it. This approach questions the interplay between quantum mechanics and the causality structure of space-time.