Pair Creation in Inhomogeneous Fields

Details Pair Creation in Inhomogeneous Fields Pair Creation in Inhomogeneous Fields

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mgm..conf.1341s&link_type=abstract

"THE ELEVENTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation an

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It has been known since the early days of QED that spontaneous electron-positron pair creation from vacuum should occur in a strong electric field. A simple formula for the pair creation rate in the constant field case was obtained in 1951 by Schwinger using effective action methods. However, many potential applications such as in laser or heavy ion physics involve electric fields which are strongly inhomogeneous. I will present a recently developed approach to this problem based on a stationary phase approximation of Feynman's relativistic worldline path integral representing the one-loop QED effective action in the field.

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