Pair creation and axial anomaly in light-cone QED<sub>2</sub>
Theodore N. Tomaras; Nick C. Tsamis; Richard. P. Woodard
Журнал:
Journal of High Energy Physics
Дата:
2001-11-01
Аннотация:
The 1+1-dimensional massive Dirac equation is solved exactly in light-cone coordinates for x<sup>+</sup> > 0 and x<sup>−</sup> > −L, in the presence of an arbitrary x<sup>+</sup> dependent electric field. Our solution resolves the ambiguity at p<sup>+</sup> = 0. We also obtain the one loop rate for pair production for a positive electric field, compute the expectation values of the vector and axial vector currents, and recover the well known anomaly e<sup>2</sup>E/π in the divergence of the latter. A final intriguing result is that the theory seems to exhibit a phase transition in the limit of infinite L.
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