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Entanglement entropy of scattering particles

Abstract : We study the entanglement entropy between the two outgoing particles in an elastic scattering process. It is formulated within an S-matrix formalism using the partial wave expansion of two-body states, which plays a significant role in our computation. As a result, we obtain a novel formula that describes the entanglement entropy in a high energy scattering by the use of physical observables, namely the elastic and total cross sections and a physical bound on the impact parameter range, related to the elastic differential cross-section.
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Submitted on : Friday, April 8, 2016 - 2:49:38 PM
Last modification on : Monday, October 3, 2022 - 11:43:29 AM
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Robi Peschanski, Shigenori Seki. Entanglement entropy of scattering particles. Physics Letters B, Elsevier, 2016, 758, pp.89-92. ⟨10.1016/j.physletb.2016.04.063⟩. ⟨cea-01299887⟩

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