A scalable tripartite Wigner's friend scenario
arXiv:2109.02298 · doi:10.1088/1402-4896/acdd33
Abstract
Wigner's friend thought experiment is intended to reveal the inherent tension between unitary evolution and measurement collapse. On the basis of Wigner's friend experiment, Brukner derives a no-go theorem for observer-independent facts. We construct an extended Wigner's friend scenario including three laboratories, namely, Alice's laboratory, Bob's laboratory and Charlie's laboratory, where Alice, Bob and Charlie are standing outside the laboratories while their friends are placed inside their own laboratories. We consider quantum simulation via Q\# quantum programming and also realize the primary quantum circuits using IBM quantum computers. Then, we calculate the probabilities and corresponding statistical uncertainties. It has been shown that the results of quantum simulation are clearly consistent with theoretical values, while it has a slightly higher error rates for the experimental results of quantum computers mainly because of a series of quantum gates, especially CNOT gates.
8 pages, 8 figures
References in corpus (5)
- Entanglement detection
- Resource-efficient linear optical quantum computation
- Demonstrating the power of quantum computers, certification of highly entangled measurements and scalable quantum nonlocality
- Physics and Metaphysics of Wigner's Friends: Even performed pre-measurements have no results
- Law of Total Probability in Quantum Theory and Its Application in Wigner's Friend Scenario