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arXiv · 2305.04674

Entangled coherent states and violations of Bell-CHSH inequalities

Philipe De Fabritiis·Fillipe M. Guedes·Giovani Peruzzo·Silvio P. Sorella
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Abstract

Three classes of entangled coherent states are employed to study the Bell-CHSH inequality. By using pseudospin operators in infinite dimensional Hilbert spaces, four dichotomic operators $(A,A',B,B')$ entering the inequality are constructed. For each class of coherent states, we compute the correlator $\langle \psi \vert A B + A' B + A B' - A' B' \vert \psi \rangle$, analyzing the set of parameters that leads to a Bell-CHSH inequality violation and, particularly, to the saturation of Tsirelson's bound.

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Philipe De Fabritiis, Fillipe M. Guedes, Giovani Peruzzo, Silvio P. Sorella. 2023-05-08. Entangled coherent states and violations of Bell-CHSH inequalities. https://doi.org/10.1016/j.physleta.2023.129111

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