Lee, J.P., Bennett, A.J., Stevenson, R.M. et al. (4 more authors) (2018) Multi-dimensional photonic states from a quantum dot. Quantum Science and Technology, 3 (2).
Abstract
Quantum states superposed across multiple particles or degrees of freedom offer an advantage in the development of quantum technologies. Creating these states deterministically and with high efficiency is an ongoing challenge. A promising approach is the repeated excitation of multi-level quantum emitters, which have been shown to naturally generate light with quantum statistics. Here we describe how to create one class of higher dimensional quantum state, a so called W-state, which is superposed across multiple time bins. We do this by repeated Raman scattering of photons from a charged quantum dot in a pillar microcavity. We show this method can be scaled to larger dimensions with no reduction in coherence or single-photon character. We explain how to extend this work to enable the deterministic creation of arbitrary time-bin encoded qudits.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
Keywords: | quantum dots; Raman scattering; quantum information; quantum optics; photonics; cavity QED |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 25 Oct 2018 11:06 |
Last Modified: | 25 Oct 2018 11:10 |
Published Version: | https://doi.org/10.1088/2058-9565/aaa7b7 |
Status: | Published |
Publisher: | IOP Publishing |
Identification Number: | 10.1088/2058-9565/aaa7b7 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137720 |