Quantum Nonlocality and Quantum Correlations in the Stern–Gerlach Experiment
AbstractThe Stern–Gerlach experiment (SGE) is one of the foundational experiments in quantum physics. It has been used in both the teaching and the development of quantum mechanics. However, for various reasons, some of its quantum features and implications are not fully addressed or comprehended in the current literature. Hence, the main aim of this paper is to demonstrate that the SGE possesses a quantum nonlocal character that has not previously been visualized or presented before. Accordingly, to show the nonlocality into the SGE, we calculate the quantum correlations by redefining the Banaszek–Wódkiewicz correlation in terms of the Wigner operator, that is , where is the Wigner operator, is the Pauli spin operator in an arbitrary direction and is the quantum state given by an entangled state of the external degree of freedom and the eigenstates of the spin. We show that this correlation function for the SGE violates the Clauser–Horne–Shimony–Holt Bell inequality. Thus, this feature of the SGE might be interesting for both the teaching of quantum mechanics and to investigate the phenomenon of quantum nonlocality. View Full-Text
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Piceno Martínez, A.E.; Benítez Rodríguez, E.; Mendoza Fierro, J.A.; Méndez Otero, M.M.; Arévalo Aguilar, L.M. Quantum Nonlocality and Quantum Correlations in the Stern–Gerlach Experiment. Entropy 2018, 20, 299.
Piceno Martínez AE, Benítez Rodríguez E, Mendoza Fierro JA, Méndez Otero MM, Arévalo Aguilar LM. Quantum Nonlocality and Quantum Correlations in the Stern–Gerlach Experiment. Entropy. 2018; 20(4):299.Chicago/Turabian Style
Piceno Martínez, Alma E.; Benítez Rodríguez, Ernesto; Mendoza Fierro, Julio A.; Méndez Otero, Marcela M.; Arévalo Aguilar, Luis M. 2018. "Quantum Nonlocality and Quantum Correlations in the Stern–Gerlach Experiment." Entropy 20, no. 4: 299.
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