Optical selection rules for the quantum transitions from the ground state of the crystal to the superposition states of the two-dimensional magneto-excitons

S. A. Moskalenko; I. V. Podlesny; I. A. Zubac; B. V. Novikov

doi:10.1117/12.2570819

31 December 2020 Optical selection rules for the quantum transitions from the ground state of the crystal to the superposition states of the two-dimensional magneto-excitons

S. A. Moskalenko, I. V. Podlesny, I. A. Zubac, B. V. Novikov

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Proceedings Volume 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X; 117180Q (2020) https://doi.org/10.1117/12.2570819
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2020, 2020, Online Only

Abstract

The properties of the two-dimensional (2D) magnetoexcitons in the GaAs-type quantum wells subjected to the action of a strong perpendicular magnetic field and of the 2D Wannier-Mott excitons in the transition metal dichalcogenides with the binding energy determined by the direct Coulomb electron-hole (e-h) interaction and with the summary e-h spin projections F = ± 1 are compared. In both cases the exchange e-h Coulomb interaction leads to the creation of the symmetric and asymmetric superposition states formed by two bare exciton states with F = ± 1. The superposition states are characterized in different variants by the Dirac cone dispersion laws and with quantum interference effects in the optical quantum transitions from the ground state of the crystal.

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S. A. Moskalenko, I. V. Podlesny, I. A. Zubac, and B. V. Novikov "Optical selection rules for the quantum transitions from the ground state of the crystal to the superposition states of the two-dimensional magneto-excitons", Proc. SPIE 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X, 117180Q (31 December 2020); https://doi.org/10.1117/12.2570819

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KEYWORDS

Excitons

Superposition

Polarization

Crystals

Magnetism

Quantum wells

Photons

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