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- Title
Source of Indistinguishable Single Photons Based on Epitaxial InAs/GaAs Quantum Dots for Integration in Quantum Computing Schemes.
- Authors
Galimov, A. I.; Rakhlin, M. V.; Klimko, G. V.; Zadiranov, Yu. M.; Guseva, Yu. A.; Troshkov, S. I.; Shubina, T. V.; Toropov, A. A.
- Abstract
The characteristics of single photons emitted by columnar microstructures based on epitaxial microcavity heterostructures with distributed Bragg reflectors, which include self-organized InAs/GaAs quantum dots and have a comparatively low Q factor in the range of 2000–3000, have been studied. It has been shown that a state with a given spin configuration—exciton with a certain polarization or trion—can be initialized in a single quantum dot under the coherent resonant linearly polarized optical pumping by a π pulse. The measurement of two-photon interference by the Hong–Ou–Mandel scheme has demonstrated that the degree of indistinguishability of successively emitted single photons is 97 and 93% at a time delay of 2 and 250 ns, respectively. Prospects of application of such sources in optical quantum computing schemes have been discussed.
- Subjects
QUANTUM dots; QUANTUM computing; OPTICAL quantum computing; PHOTONS; DISTRIBUTED Bragg reflectors; RESONANT tunneling; EXCITON theory
- Publication
JETP Letters, 2021, Vol 113, Issue 4, p252
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364021040093