An All-Orders Derivative Expansion

Gerald Dunne

doi:10.1142/S0217751X97000876

An All-Orders Derivative Expansion

高能物理 - 理论 2011-04-15 v1

作者: Gerald Dunne

在 arXiv 上查看 ↗ PDF ↗ DOI ↗

摘要

We evaluate the exact $QED_{2+1}$ 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.

关键词

fermionic models effective action in quantum field theory fermion field theory and gross-neveu model

引用

@article{arxiv.hep-th/9611019,
  title  = {An All-Orders Derivative Expansion},
  author = {Gerald Dunne},
  journal= {arXiv preprint arXiv:hep-th/9611019},
  year   = {2011}
}

备注

9pp LaTeX; Talk at Telluride Workshop on Low Dimensional Field Theory

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