Nonperturbative Treatment of Double Compton Backscattering in Intense Laser Fields

Journal Article · Fri Sep 11 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.110404· OSTI ID:21364679

Loetstedt, Erik ^[1]; Jentschura, Ulrich D ^[2]

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1. Max-Planck-Institut fuer Kernphysik, Postfach 103980, 69029 Heidelberg (Germany)
2. Department of Physics, Missouri University of Science and Technology, Rolla, Missouri 65409-0640 (United States)

The emission of a pair of entangled photons by an electron in an intense laser field can be described by two-photon transitions of laser-dressed, relativistic Dirac-Volkov states. In the limit of a small laser field intensity, the two-photon transition amplitude approaches the result predicted by double Compton scattering theory. Multiexchange processes with the laser field, including a large number of exchanged laser photons, cannot be described without the fully relativistic Dirac-Volkov propagator. The nonperturbative treatment significantly alters theoretical predictions for future experiments of this kind. We quantify the degree of polarization correlation of the photons in the final state by employing the well-established concurrence as a measure of the entanglement.

• OSTI ID: 21364679
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 11 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
BACKSCATTERING
BASIC INTERACTIONS
BOSONS
COMPTON EFFECT
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
INTERACTIONS
LASER RADIATION
LASERS
LEPTONS
MASSLESS PARTICLES
PHOTONS
POLARIZATION
QUANTUM ENTANGLEMENT
RADIATIONS
RELATIVISTIC RANGE
SCATTERING
TRANSITION AMPLITUDES