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Gravitational corrections to the Euler-Heisenberg Lagrangian (0812.4849v1)
Published 28 Dec 2008 in hep-th and gr-qc
Abstract: We use the worldline formalism for calculating the one-loop effective action for the Einstein-Maxwell background induced by charged scalars or spinors, in the limit of low energy and weak gravitational field but treating the electromagnetic field nonperturbatively. The effective action is obtained in a form which generalizes the standard proper-time representation of the Euler-Heisenberg Lagrangian. We compare with previous work and discuss possible applications.
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