4 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…
Coherent superposition of emitted and resonantly scattered photons from a two-level system driven by an even- pulse
I. V. Krainov, A. I. Galimov, M. V. Rakhlin +2
We report the observation of a bunching of ~3 photon states, which is a coherent superposition of emitted photons and resonantly scattered laser photons, arising upon excitation by…
Stimulated down-conversion of single-photon emission in a quantum dot placed in a target-frequency microcavity
I. V. Krainov, M. V. Rakhlin, A. I. Veretennikov +1
Currently, two optical processes are mainly used to realize single photon sources: deterministic transitions in a semiconductor quantum dot (QD) placed in a microcavity and spontan…