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arXiv · 1412.7894

Variation of Entanglement Entropy in Scattering Process

I. Y. Park·Shigenori Seki·Sang-Jin Sin
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Abstract

In a scattering process, the final state is determined by an initial state and an S-matrix. We focus on two-particle scattering processes and consider the entanglement between these particles. For two types initial states; i.e., an unentangled state and an entangled one, we calculate perturbatively the change of entanglement entropy from the initial state to the final one. Then we show a few examples in a field theory and in quantum mechanics.

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I. Y. Park, Shigenori Seki, Sang-Jin Sin. 2015-01-09. Variation of Entanglement Entropy in Scattering Process. https://doi.org/10.1016/j.physletb.2015.02.028

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