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Optical Signatures of Coupled Quantum Dots
Abstract
An asymmetric pair of coupled InAs quantum dots is tuned into resonance by applying an electric field so that a single hole forms a coherent molecular wave function. The optical spectrum shows a rich pattern of level anticrossings and crossings that can be understood as a superposition of charge and spin configurations of the two dots. Coulomb interactions shift the molecular resonance of the optically excited state (charged exciton) with respect to the ground state (single charge), enabling light-induced coupling of the quantum dots. This result demonstrates the possibility of optically coupling quantum dots for application in quantum information processing.
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Cited by
Material platforms for spin-based photonic quantum technologies
Atatüre, M., Englund, D., Vamivakas, N., Lee, S.-Y., & Wrachtrup, J. (2018) · Nature Reviews Materials · doi:10.1038/s41578-018-0008-9 · Cited by 766
A Coherent Single-Hole Spin in a Semiconductor
Brunner, D., Gerardot, B. D., Dalgarno, P. A., Wüst, G., Karrai, K., Stoltz, N. G., Petroff, P. M., & Warburton, R. J. (2009) · Science · doi:10.1126/science.1173684 · Cited by 344
A solid state source of photon triplets based on quantum dot molecules
Khoshnegar, M., Huber, T., Predojević, A., Dalacu, D., Prilmüller, M., Lapointe, J., Wu, X., Tamarat, P., Lounis, B., Poole, P., et al. (2017) · Nature Communications · doi:10.1038/ncomms15716 · Cited by 52
Metadata
- Authors
- Stinaff, E. A., Scheibner, M., Bracker, A. S., Ponomarev, I. V., Korenev, V. L., Ware, M. E., Doty, M. F., Reinecke, T. L., & Gammon, D.
- Venue
- Science
- Published
- 2006-02-03
- Volume
- 311
- Issue
- 5761
- Pages
- 636-639
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2034893767
- Cited by
- 470
- References
- 0
- FWCI
- 26.85
- Type
- journal article
- Language
- en
- Open access
- closed
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- Stinaff, E. A., Scheibner, M., Bracker, A. S., Ponomarev, I. V., Korenev, V. L., Ware, M. E., Doty, M. F., Reinecke, T. L., & Gammon, D. (2006). Optical Signatures of Coupled Quantum Dots. Science. https://doi.org/10.1126/science.1121189
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