Publication Date:
2016-06-22
Description:
Author(s): P. Androvitsaneas, A. B. Young, C. Schneider, S. Maier, M. Kamp, S. Höfling, S. Knauer, E. Harbord, C. Y. Hu, J. G. Rarity, and R. Oulton Quantum dots have long been considered systems that could deliver a significant advantage for practical quantum information applications. Their atomic dipolelike transitions and their compatibility to be integrated into a variety of photonic structures has highlighted this fact. Here, the authors measure an unexpectedly high single-photon level phase shift (~6 ∘ ), induced upon reflection from a singly negatively charged quantum dot incorporated in a low- Q -factor cavity ( Q ~290). This measurement provides the first evidence for a system with unit fidelity and a high efficiency in its interactions. The result opens a new road to realistic spin-photon entanglement devices, in a simple and easy to fabricate photonic structure. [Phys. Rev. B 93, 241409(R)] Published Tue Jun 21, 2016
Keywords:
Surface physics, nanoscale physics, low-dimensional systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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