신상진
2016-10-21T07:24:54Z
2016-10-21T07:24:54Z
2015-04
PHYSICS LETTERS B, v. 743, Page. 147-153
0370-2693
1873-2445
http://www.sciencedirect.com/science/article/pii/S0370269315001094
http://hdl.handle.net/20.500.11754/23907
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. (C) 2015 Published by Elsevier B.V.
This work was supported by the Mid-career Researcher Program through the National Research Foundation of Korea (NRF) grant No. NRF-2013R1A2A2A05004846. IP thanks Sang-Jin Sin for his hospitality during the IP's visit to Hanyang University through its foreign scholar invitation program. SS was also supported in part by the Basic Science Research Program through NRF grant No. NRF-2013R1A1A2059434.
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ELSEVIER SCIENCE BV
Variation of entanglement entropy in scattering process
Article
743
10.1016/j.physletb.2015.02.028
147-153
PHYSICS LETTERS B
Seki, Shigenori
Park, I. Y.
Sin, Sang-Jin
2015003302
S
COLLEGE OF NATURAL SCIENCES[S]
DEPARTMENT OF PHYSICS
sjsin