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Tunneling effects on fine-structure splitting in quantum-dot molecules

Hanz Y Ramírez1, Shun-Jen Cheng

  • 1Department of Electrophysics, National Chiao Tung University, Hsinchu 300, Taiwan, Republic of China.

Physical Review Letters
|September 28, 2010
PubMed
Summary

We theoretically study bias-controlled tunneling in coupled quantum dots. High tunneling rates significantly reduce optical fine-structure splitting, enabling stacked quantum dots as sources for entangled photon pairs.

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