Semantic Scholar
Open Access
1997
3 sitasi
HOPF TERM FOR A TWO-DIMENSIONAL ELECTRON GAS
G. Volovik
V. Yakovenko
Abstrak
In this Comment on the paper by W. Apel and Yu. A. Bychkov, cond-mat/9610040 and Phys. Rev. Lett. 78, 2188 (1997), we draw attention to our prior microscopic derivations of the Hopf term for various systems and to shortcomings of the Apel-Bychkov derivation. We explain how the value of the Hopt term prefactor $\Theta$ is expressed in terms of a topological invariant in the momentum space and the quantized Hall conductivity of the system. (See also related paper cond-mat/9703195)
Topik & Kata Kunci
Penulis (2)
G
G. Volovik
V
V. Yakovenko
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 1997
- Bahasa
- en
- Total Sitasi
- 3×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1103/PhysRevLett.79.3791
- Akses
- Open Access ✓