Substantivalism, relationalism and time reversal in standard quantum mechanics

CRISTIAN LÓPEZ

Córdoba

Conferencia; VII Conference on Quantum Foundations; 2017

This presentation aims at showing that there is a conceptual issue threateninglylurking behind orthodox way of approaching to the arrow of time in non-relativistic quantum mechanics. I shall firstly that, at least, two sorts of time reversal operator can be suitably defined, though they lead to different situation as they are aiming at different purposes: non-relativistic quantum mechanics turns out to be time reversal or non-time reversal invariant depending on what operator we come to conceive as appropriated. Then, I shall point out pros and cons of those sorts of time reversal operator, and ultimately I shall argue that each operator assume and embody opposite commitments with respect to the nature of time, to wit, they involve either a relationalist account of time or a substantialist one.