On the Vacuum Energy Density and Non-Perturbative Effects in Sigma Models

V. G. Ksenzov

doi:10.1016/0370-2693(94)90214-3

On the Vacuum Energy Density and Non-Perturbative Effects in Sigma Models

High Energy Physics - Theory 2016-09-06 v1

Authors: V. G. Ksenzov

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Abstract

The vacuum energy density is obtained for the $O(N)$ nonlinear sigma model. It is shown that non-perturbative contributions are connected with the square of the symmetry current of the group $O(N)$ . This result is valid for $\sigma$ - fields which are subject to the constraint.

Keywords

vacuum energy density non-perturbative effects sigma models O(N) nonlinear sigma model symmetry current

Cite

@article{arxiv.hep-th/9402123,
  title  = {On the Vacuum Energy Density and Non-Perturbative Effects in Sigma Models},
  author = {V. G. Ksenzov},
  journal= {arXiv preprint arXiv:hep-th/9402123},
  year   = {2016}
}

Comments

page5,latex,ITEP-28-93

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