Hopf term and the effective Lagrangian for the Skyrmions in a two-dimensional electron gas at small g-factor

Details Hopf term and the effective Lagrangian for the Skyrmions in a two-dimensional electron gas at small g-factor Hopf term and the effective Lagrangian for the Skyrmions in a two-dimensional electron gas at small g-factor

1996-10-07

arxiv.org/abs/cond-mat/9610040v1

Phys. Rev. Lett. 78, 2188 (1997)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, Latex

Scientific paper

10.1103/PhysRevLett.78.2188

We study interacting electrons in two dimensions moving in the lowest Landau level under the condition that the Zeeman energy is much smaller than the Coulomb energy and the filling factor is one. In this case, Skyrmion quasiparticles play an important role. Here, we present a simple and transparent derivation of the corresponding effective Lagrangian. In its kinetic part, we find a non-zero Hopf term the prefactor of which we determine rigorously. In the Hamiltonian part, we calculate, by means of a gradient expansion, the Skyrmion-Skyrmion interaction completely up to fourth order in spatial derivatives.

Affiliated with

Also associated with

No associations

Rating

Hopf term and the effective Lagrangian for the Skyrmions in a two-dimensional electron gas at small g-factor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hopf term and the effective Lagrangian for the Skyrmions in a two-dimensional electron gas at small g-factor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hopf term and the effective Lagrangian for the Skyrmions in a two-dimensional electron gas at small g-factor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-478289