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- Limitations on the psi-epistemic view of quantum states

The

"psi-epistemic" view is that the quantum state does not represent a

state of the world, but a state of knowledge about the world. It is

motivated, in part, by the observation of qualitative similarities between

characteristic properties of non-orthogonal quantum wavefunctions and between

overlapping classical probability distributions. It might be suggested

that this gives a natural explanation for these properties, which seem puzzling

for the alternative "psi-ontic" view. I will examine two such

similarities, quantum state overlap and quantum state discrimination, and ask

how far can we reproduce the quantitative values given by quantum theory.

It will be shown that the psi-epistemic view cannot properly account for

the quantitative values, and so must still rely on the same kind of

explanations as the "psi-ontic" view.

Event Type:

Seminar

Collection/Series:

Speaker(s):

Event Date:

Mardi, Mai 7, 2013 - 15:30 to 17:00

Location:

Time Room

©2012 Institut Périmètre de Physique Théorique