15 citations · 42 across the 9 of their papers we have counts for
9 papers
A non-magnetic mechanism of backscattering in helical edge states
I. V. Krainov, R. A. Niyazov, D. N. Aristov +1
We study interaction-induced backscattering mechanism for helical edge states of a two-dimensional topological insulator which is tunnel-coupled to a puddle located near the edge c…
Shot noise in Aharonov-Bohm interferometers: Comparison of helical and conventional setups
R. A. Niyazov, I. V. Krainov, D. N. Aristov +1
We study tunneling transport through quantum Aharonov-Bohm (AB) interferometers and demonstrate that interference effects strongly modify shot noise of the current. We discuss in d…
Effective Hamiltonian of topologically protected qubit in a helical crystal
R. A. Niyazov, D. N. Aristov, V. Yu. Kachorovskii
We study a superlattice formed by tunnel-coupled identical antidots periodically situated in a two-dimensional topological insulator placed in a magnetic field. The superlattice sp…
Spin and charge transport through helical Aharonov-Bohm interferometer with strong magnetic impurity
R. A. Niyazov, D. N. Aristov, V. Yu. Kachorovskii
We discuss transport through an interferometer formed by helical edge states of the quantum spin Hall insulator. Focusing on effects induced by a strong magnetic impurity placed in…
Coherent spin transport through helical edge states of topological insulator
R. A. Niyazov, D. N. Aristov, V. Yu. Kachorovskii
We study coherent spin transport through helical edge states of topological insulator tunnel-coupled to metallic leads. We demonstrate that unpolarized incoming electron beam acqui…
Spin-polarized tunneling into helical edge states: asymmetry and conductances
D. N. Aristov, R. A. Niyazov
We consider tunneling from the spin-polarized tip into the Luttinger liquid edge state of quantum spin Hall system. This problem arose in context of the spin and charge fractionali…
On the correlation of light polarization in uncorrelated disordered magnetic media
M. A. Kozhaev, R. A. Niyazov, V. I. Belotelov
Light scattering in a magnetic medium with uncorrelated inclusions is theoretically studied in the approximation of ladder diagram. Correlation between polarizations of electromagn…
Tunneling into and between helical edge states - fermionic approach
D. N. Aristov, R. A. Niyazov
We study four-terminal junction of spinless Luttinger liquid wires, which describes either a corner junction of two helical edges states of topological insulators or the tunneling…
Ambiguity in renormalization of X-junction between Luttinger liquid wires
D. N. Aristov, R. A. Niyazov
We study four-lead junction of semi-infinite wires by using fermionic representation in the scattering state formalism. The model of spinless fermions with short-range Luttinger li…