An All orders derivative expansion

effective action for fermions in the presence of a family of static but spatially inhomogeneous magnetic field profiles. This exact result yields an all-orders derivative expansion of the effective action, and indicates that the derivative expansion is an asymptotic, rather than a convergent, expansion.

talk: Telluride 1996/08/05
quantum electrodynamics
dimension: 3
fermion
magnetic field: external field
effective action

References(23)

Figures(0)

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