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.
arXiv comment8 pages, 8 figures
References in corpus (21)
- Quantum entanglement
- Bell nonlocality
- Entanglement detection
- On the Measurement of Qubits
- Resource-efficient linear optical quantum computation
- All multipartite Bell correlation inequalities for two dichotomic observables per site
- Bell's theorem for general N-qubit states
- How Quantum Mechanics can consistently describe the use of itself
- Quantum theory cannot consistently describe the use of itself
- Suppression of Qubit Crosstalk in a Tunable Coupling Superconducting Circuit
- A strong no-go theorem on the Wigner's friend paradox
- Quantum copying: A network
- A no-go theorem for observer-independent facts
- Efficient Scheme for Initializing a Quantum Register with an Arbitrary Superposed State
- Experimental test of local observer-independence
- 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
- Evidence of the entanglement constraint on wave-particle duality using the IBM Q quantum computer
- When Greenberger, Horne and Zeilinger meet Wigner's Friend
- Violation of generalized Bell inequality and its optimal measurement settings
- Law of Total Probability in Quantum Theory and Its Application in Wigner's Friend Scenario