Bulk-edge correspondence for the Dirac oscillator on the two-torus as a magnetic unit cell
Bulk-edge correspondence for the Dirac oscillator on the two-torus as a magnetic unit cell
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作为磁性晶胞的二环面上的狄拉克振荡器的体边对应
DOI:
10.1016/j.geomphys.2020.103784
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发表时间:
2020
影响因子:
1.5
通讯作者:
T. Iwai and B. Zhilinskii
中科院分区:
文献类型:
--
作者:
M.Hirasawa;M.Hirasawa;T. Iwai and B. Zhilinskii
The 2D Dirac oscillator can be viewed as the Dirac operator for a charged particle in a constant magnetic field. This system admits a non-abelian magnetic translation symmetry. Under a cocycle condition with respect to this symmetry, the 2D Dirac oscillator Hamiltonian is made into a Dirac Hamiltonian defined on the two-torus as a magnetic unit cell. A remarkable feature of this system is the existence of an edge-state (or extremal) eigenvalue which is attributed to different bands, according to the range to which the value of the control parameter belongs. The other eigenvalues, which are called bulk-state eigenvalues, are attributed to either of two bands for all values of the control parameter. For a sufficiently weak magnetic flux density, the Dirac oscillator Hamiltonian is brought into a semi-quantum Hamiltonian after the Landau–Peierls substitution. Then, a bulk-edge correspondence is shown to hold in terms of spectral flow for the quantum Hamiltonian and change in (formal) Chern number for the semi-quantum Hamiltonian.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
A. Boumali
通讯作者:
A. Boumali
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
S. Novikov;B. Dubrovin
通讯作者:
B. Dubrovin
DOI:
10.1103/physrevb.54.4898
发表时间:
1996
期刊:
Physical review. B, Condensed matter
影响因子:
--
作者:
Hatsugai;Kohmoto;Wu
通讯作者:
Wu
影响因子:
2.9
作者:
Sanchez-Soto, L. L.;Klimov, A. B.;Leuchs, G.
通讯作者:
Leuchs, G.
影响因子:
3.7
作者:
I. Dana;J. Zak
通讯作者:
J. Zak