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arXiv · 1111.5460

Spin-orbit Interaction induced Singlet-Triplet Resonant Raman Transitions in Quantum-dot Helium

Aram Manaselyan·Areg Ghazaryan·Tapash Chakraborty
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Abstract

From our theoretical studies of resonant Raman transitions in two-electron quantum dots (artificial helium atoms) we show that in this system, the singlet-triplet Raman transitions are allowed (in polarized configuration) only in the presence of spin-orbit interactions. With an increase of the applied magnetic field this transition dominates over the singlet-singlet and triplet-triplet transitions. This intriguing effect can therefore be utilized to tune Raman transitions as well as the spin-orbit coupling in few-electron quantum dots.

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Aram Manaselyan, Areg Ghazaryan, Tapash Chakraborty. 2011-11-23. Spin-orbit Interaction induced Singlet-Triplet Resonant Raman Transitions in Quantum-dot Helium. https://doi.org/10.1209/0295-5075%2F99%2F17009

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