Time dependence of quantum entanglement in the collision of two particles

Autor: Benedict, Mihaly G., Kovacs, Judit, Czirjak, Attila
Rok vydání: 2011
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1088/1751-8113/45/8/085304
Popis: We follow the emergence of quantum entanglement in a scattering event between two initially uncorrelated distinguishable quantum particles interacting via a delta potential. We calculate the time dependence of the Neumann entropy of the one-particle reduced density matrix. By using the exact propagator for the delta potential, we derive an approximate analytic formula for the asymptotic form of the two-particle wave function which is sufficiently accurate to account for the entanglement features of the system.
Databáze: arXiv