https://doi.org/10.1140/epjp/s13360-021-01913-y
Regular Article
Three-spin systems and the Pusey–Barrett–Rudolph theorem
1
Faculty of Physics, Shahid Bahonar University of Kerman, Kerman, Iran
2
Faculty of Science, Department of Physics, Khayyam University, Mashhad, Iran
3
Faculty of Science, Department of Physics, University of Neyshabur, Neyshabur, Iran
4
Faculty of Science, Department of Physics, Ferdowsi University of Mashhad, Mashhad, Iran
b a.ahanj@khayyam.ac.ir, ahanj@ipm.ir
Received:
15
February
2020
Accepted:
27
August
2021
Published online:
14
September
2021
The fundamental nature of quantum wave function has been the topic of many discussions since the beginning of the quantum theory. It either corresponds to an element of reality 
or it is a subjective state of knowledge about the underlying reality 
. Pusey, Barrett and Rudolph (PBR) have shown that epistemic interpretations of the quantum wave function are in contradiction with the predictions of quantum under some assumptions. In this paper, a laboratory protocol with a triple quantum dot will be introduced as a three-spin interaction system to study the PBR no-go theorem. By this experimental model, we show that the epistemic interpretation of the quantum state is in contradiction with quantum theory, based only on the assumption that measurement settings can be prepared freely and independently from each other.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
