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Observation of strongly entangled photon pairs from a nanowire quantum dot
Open accessAbstract
A bright photon source that combines high-fidelity entanglement, on-demand generation, high extraction efficiency, directional and coherent emission, as well as position control at the nanoscale is required for implementing ambitious schemes in quantum information processing, such as that of a quantum repeater. Still, all of these properties have not yet been achieved in a single device. Semiconductor quantum dots embedded in nanowire waveguides potentially satisfy all of these requirements; however, although theoretically predicted, entanglement has not yet been demonstrated for a nanowire quantum dot. Here, we demonstrate a bright and coherent source of strongly entangled photon pairs from a position-controlled nanowire quantum dot with a fidelity as high as 0.859±0.006 and concurrence of 0.80±0.02. The two-photon quantum state is modified via the nanowire shape. Our new nanoscale entangled photon source can be integrated at desired positions in a quantum photonic circuit, single-electron devices and light-emitting diodes.
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Cites
Quantum Repeaters: The Role of Imperfect Local Operations in Quantum Communication
Briegel, H.-J., Dür, W., Cirac, J. I., & Zoller, P. (1998) · Physical Review Letters · doi:10.1103/physrevlett.81.5932 · Cited by 3,481
James, D. F. V., Kwiat, P. G., Munro, W. J., & White, A. G. (2001) · Physical Review A · doi:10.1103/physreva.64.052312 · Cited by 2,176
Ultrabright source of entangled photon pairs
Dousse, A., Suffczyński, J., Beveratos, A., Krebs, O., Lemaître, A., Sagnes, I., Bloch, J., Voisin, P., & Senellart, P. (2010) · Nature · doi:10.1038/nature09148 · Cited by 624
A wavelength-tunable fiber-coupled source of narrowband entangled photons
Fedrizzi, A., Herbst, T., Poppe, A., Jennewein, T., & Zeilinger, A. (2007) · Optics Express · doi:10.1364/oe.15.015377 · Cited by 440
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Munsch, M., Malik, N. S., Dupuy, E., Delga, A., Bleuse, J., Gérard, J.-M., Claudon, J., Gregersen, N., & Mørk, J. (2013) · Physical Review Letters · doi:10.1103/physrevlett.110.177402 · Cited by 157
Cited by
Solid-state single-photon emitters
Aharonovich, I., Englund, D., & Toth, M. (2016) · Nature Photonics · doi:10.1038/nphoton.2016.186 · Cited by 1,786
Microwave photonics with superconducting quantum circuits
Gu, X., Kockum, A. F., Miranowicz, A., Liu, Y.-X., & Nori, F. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.10.002 · Cited by 1,307
Wang, H., Hu, H., Chung, T.-H., Qin, J., Yang, X., Li, J.-P., Liu, R.-Z., Zhong, H.-S., He, Y.-M., Ding, X., et al. (2019) · Physical Review Letters · doi:10.1103/physrevlett.122.113602 · Cited by 325
Gschrey, M., Thoma, A., Schnauber, P., Seifried, M., Schmidt, R., Wohlfeil, B., Krüger, L., Schulze, J. H., Heindel, T., Burger, S., et al. (2015) · Nature Communications · doi:10.1038/ncomms8662 · Cited by 315
Schnauber, P., Singh, A., Schall, J., Park, S. I., Song, J. D., Rodt, S., Srinivasan, K., Reitzenstein, S., & Davanco, M. (2019) · Nano Letters · doi:10.1021/acs.nanolett.9b02758 · Cited by 87
Metadata
- Authors
- Versteegh, M. A. M., Reimer, M. E., Jöns, K. D., Dalacu, D., Poole, P. J., Gulinatti, A., Giudice, A., & Zwiller, V.
- Venue
- Nature Communications
- Published
- 2014-10-31
- Volume
- 5
- Issue
- 1
- Pages
- 5298-5298
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2050678841
- Cited by
- 233
- References
- 6
- FWCI
- 12.31
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Versteegh, M. A. M., Reimer, M. E., Jöns, K. D., Dalacu, D., Poole, P. J., Gulinatti, A., Giudice, A., & Zwiller, V. (2014). Observation of strongly entangled photon pairs from a nanowire quantum dot. Nature Communications. https://doi.org/10.1038/ncomms6298
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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