Journal
PHYSICAL REVIEW D
Volume 83, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.83.065007
Keywords
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Funding
- Austrian Academy of Sciences
- F.W.F. doctoral program [DK-W1203]
- European Research Council [204059-QPQV]
- Swedish Research Council [2007-4422]
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We investigate strong field vacuum effects using a phase-space approach based on the Wigner formalism. We calculate the Wigner function in a strong null-field background exactly, using lightfront field theory. The Wigner function exhibits the distinct features of strong field QED: in particular, we identify the effective mass in a laser pulse, compare it to the well-known mass shift in a periodic plane wave and identify signals of multiphoton absorption and emission. Finally, we show how to extend our results to describe vacuum pair production in colliding laser pulses.
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