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Phys. Rev. Lett. 79, 3791–3791 (1997)

Hopf Term for a Two-Dimensional Electron Gas

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G. E. Volovik1,2 and V. M. Yakovenko3
1Helsinki University of Technology Low Temperature Laboratory P.O. Box 2200, FIN-02015 HUT, Finland
2Landau Institute for Theoretical Physics 117334 Moscow, Russia
3Department of Physics University of Maryland College Park, Maryland 20742-4111

Received 26 March 1997; published in the issue dated 10 November 1997

A Comment on the Letter by W. Apel and Yu. A. Bychkov, Phys. Rev. Lett. 78, 2188 (1997). The authors of the Letter offer a Reply.

© 1997 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.79.3791
DOI:
10.1103/PhysRevLett.79.3791
PACS:
73.20.Dx, 71.35.Ji, 73.20.Mf, 75.30.Et

See Also

Original Article: W. Apel and Yu. A. Bychkov, Hopf Term and the Effective Lagrangian for the Skyrmions in a Two-Dimensional Electron Gas at Small g Factor, Phys. Rev. Lett. 78, 2188 (1997).