Triple Compton effect: A photon splitting into three upon collision with a free electron

Erik Lötstedt, U. Jentschura

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The process in which a photon splits into three after the collision with a free electron (triple Compton effect) is the most basic process for the generation of a high-energy multiparticle entangled state composed out of elementary quanta. The cross section of the process is evaluated in two experimentally realizable situations, one employing gamma photons and stationary electrons, and the other using keV photons and GeV electrons of an x-ray free electron laser. For the first case, our calculation is in agreement with the only available measurement of the differential cross section for the process under study. Our estimates indicate that the process should be readily measurable also in the second case. We quantify the polarization entanglement in the final state by a recently proposed multiparticle entanglement measure.

Original languageEnglish
Article number233201
JournalPhysical Review Letters
Volume108
Issue number23
DOIs
Publication statusPublished - Jun 4 2012

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Compton effect
free electrons
collisions
photons
x ray lasers
cross sections
free electron lasers
electrons
polarization
estimates
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Triple Compton effect : A photon splitting into three upon collision with a free electron. / Lötstedt, Erik; Jentschura, U.

In: Physical Review Letters, Vol. 108, No. 23, 233201, 04.06.2012.

Research output: Contribution to journalArticle

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