Nonrelativistic effective Lagrangians.

@article{Leutwyler1994NonrelativisticEL,
  title={Nonrelativistic effective Lagrangians.},
  author={Leutwyler},
  journal={Physical review. D, Particles and fields},
  year={1994},
  volume={49 6},
  pages={
          3033-3043
        }
}
Chiral perturbation theory is extended to nonrelativistic systems with spontaneously broken symmetry. In the effective Lagrangian, order parameters associated with the generators of the group manifest themselves as effective coupling constants of a topological term, which is gauge invariant only up to a total derivative. In the case of the ferromagnet, a term connected with the Brouwer degree dominates the derivative expansion. The general analysis includes antiferromagnetic magnons and phonons… CONTINUE READING

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References

Publications referenced by this paper.
SHOWING 1-10 OF 14 REFERENCES

Determination of the low energy parameters of the 2D Heisenberg antiferromagnet

H Neuberger, T Ziman
  • Determination of the low energy parameters of the 2D Heisenberg antiferromagnet
  • 1989

Nucl. Phys. B

P Gerber, H Leutwyler
  • Nucl. Phys. B
  • 1989

Ann. Phys. (N.Y.) Nucl. Phys. B

J Gasser, H Leutwyler
  • Ann. Phys. (N.Y.) Nucl. Phys. B
  • 1984

Phys. Rev. Phys. Rev

S Coleman, J Wess, B Zumino
  • Phys. Rev. Phys. Rev
  • 1969

A detailed discussion of the Goldstone theorem, in particular also in the context of nonrelativistic broken symmetries is given in G

S Guralnik, C R Hagen, T W B Kibble
  • Advances in particle physics
  • 1968

Phys. Rev. Lett

D Mermin, H Wagner
  • Phys. Rev. Lett
  • 1966