Aharonov-Bohm quantum rings in high-Q microcavities
Alexeev, Arseny; Shelykh, I.A.; Portnoi, M.E.
Date: 26 August 2013
Article
Journal
Physical Review B - Condensed Matter and Materials Physics
Publisher
American Physical Society
Publisher DOI
Abstract
A single-mode microcavity with an embedded Aharonov-Bohm quantum ring, which is pierced by a magnetic flux and subjected to a lateral electric field, is studied theoretically. It is shown that external electric and magnetic fields provide additional means of control of the emission spectrum of the system. In particular, when the magnetic ...
A single-mode microcavity with an embedded Aharonov-Bohm quantum ring, which is pierced by a magnetic flux and subjected to a lateral electric field, is studied theoretically. It is shown that external electric and magnetic fields provide additional means of control of the emission spectrum of the system. In particular, when the magnetic flux through the quantum ring is equal to a half-integer number of the magnetic flux quantum, a small change in the lateral electric field allows tuning of the energy levels of the quantum ring into resonance with the microcavity mode providing an efficient way to control the quantum ring-microcavity coupling strength. Emission spectra of the system are calculated for several combinations of the applied magnetic and electric fields.
Physics and Astronomy
Faculty of Environment, Science and Economy
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