24–26 May 2017
Laboratori Nazionali di Frascati
Europe/Rome timezone

How well can we find out whether a wave function has collapsed?

24 May 2017, 12:40
40m
Aula Seminari (Laboratori Nazionali di Frascati)

Aula Seminari

Laboratori Nazionali di Frascati

Speaker

Roderich Tumulka (Eberhard-Karls University)

Description

In this talk, I focus on a question that is slightly different from testing collapse models: We know that "quantum measurements" are not measurements in the usual meaning of the word. So how about measurements, in the usual meaning of the word, in a collapse model? For example, if GRW theory were true, then how could we measure the number of collapses that have occurred in a given physical system in a given time interval? I provide a mathematical analysis of some simple cases. It turns out that there are limitations to knowledge---that is, that some well-defined quantities cannot be reliably measured empirically. Such a situation may seem philosophically problematical, but I will argue that it is not. This is joint work with Charles Wesley Cowan

Presentation materials