Göttingen 2025 – wissenschaftliches Programm

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 1: Quantum Mechanics

MP 1.3: Vortrag

Montag, 31. März 2025, 17:25–17:45, ZHG001

The GHZ state and Bohmian positions — •Robert Helling — Ludwig-Maximilians-Universität München

In the Bohmian interpretation, particle positions are realistic that is they have definite values even when not being observed. We realise the GHZ state in terms of position observables at different times and argue that violations of Bell type inequalities pose challenges to this realistic nature of positions. They can be avoided at the price of giving up predictability for outcomes of measurement at multiple times for observables that can be computed with textbook quantum mechanics.

Keywords: Bohmian Mechanics; Bell-type inequalities; Interpretations of quantum mechanics.