arXiv:cond-mat/9711076 Abstract

arXiv:cond-mat/9711076Abstract References Reviews Resources

Hopf Term for a Two-Dimensional Electron Gas: Comment to Reply to Comment

Published 1997-11-10Version 1

In our Comment (G.E. Volovik and V.M. Yakovenko, Phys. Rev. Lett. 79 (1997) 3792) to the Letter by W. Apel and Yu.A. Bychkov (Phys. Rev. Lett. 78 (1997) 2188) we questioned the derivation of the Hopf term in the hydrodynamic action for the Skyrmion dynamics in QHE. Our main argument was that the description in terms of Euler angles used by Apel and Bychkov was potentially dangerous since these angles were ill-defined. The Reply (W. Apel and Yu.A. Bychkov, Phys. Rev. Lett. 79 (1997) 3792) to our Comment confirmed our apprehension.

Comments: RevTex file, 1 page, Comment to Reply by W. Apel and Yu.A. Bychkov, Phys. Rev. Lett. 79 (1997) 3792

Categories: cond-mat.mes-hall

Keywords: two-dimensional electron gas, hopf term, main argument, euler angles, skyrmion dynamics

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