Mathematics
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.128..377s&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 128, no. 2, Dec. 1986, p. 377-409.
Mathematics
33
Magnetic Effects, Polarization Characteristics, Positronium, Pulsars, Annihilation Reactions, Bethe-Salpeter Equation, Green'S Functions, Operators (Mathematics), Particle Production, Photons
Scientific paper
The energy spectrum of a positronium atom in a mgnetic field in excess of 2.35 GG and its implications for photon capture in such fields (e.g., in pulsars) are investigated theoretically, refining and extending the analysis of Shabad (1975). Consideration is given to one-photon positronium creation and annihilation in a magnetic field; the Bethe-Salpeter equation for electron-positron states in strong magnetic fields; the contribution of bound states to the photon-polarization operator; the poles of the Green function for the photon; and the effects of photon capture and positronium creation on the physics of pulsars, gamma bursters, close-binary X-ray sources, and other objects containing magnetic neutron stars. It is found that in 4-TG fields with curved lines of force, adiabatic transformation of photons channeled along the lines into bound pairs is more important than the analogous formation of unbound pairs.
Shabad Anatoly E.
Usov Vladimir V.
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