Sheldon, S.J. orcid.org/0000-0002-9518-197X, Brash, A.J. orcid.org/0000-0001-5717-6793, Skolnick, M.S. orcid.org/0000-0002-3972-8344 et al. (2 more authors) (2024) Optical spin initialization and readout with a cavity-coupled quantum dot in an in-plane magnetic field. Physical Review B, 110. 235411. ISSN 2469-9950
Abstract
The spin of a charged semiconductor quantum dot (QD) coupled to an optical cavity is a promising candidate for high-fidelity spin-photon interfaces; the cavity selectively modifies the decay rates of optical transitions such that spin initialization, manipulation, and readout are all possible in a single magnetic field geometry. By performing cavity QED calculations, we show that a cavity with a single, linearly polarized mode can simultaneously support both high-fidelity optical spin initialization and readout in a single, in-plane (Voigt geometry) magnetic field. Furthermore, we demonstrate that single-mode cavities always outperform bimodal cavities in experimentally favorable driving regimes. Our analysis, when combined with established methods of control in a Voigt geometry field, provides optimal parameter regimes for high-fidelity initialization and readout, and coherent control in both cavity configurations, providing insights for the design and development of QD spin-photon interfaces as the basis of quantum network nodes and for the generation of photonic graph states.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Quantum control; Quantum optics; Quantum dots; Spin; Dipole approximation; Master equation; Rotating wave approximation |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematical and Physical Sciences |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/N031776/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/V026496/1 Engineering and Physical Sciences Research Council EP/W027909/1 Engineering and Physical Sciences Research Council EP/X015300/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL UNSPECIFIED ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL UNSPECIFIED European Research Council 320570 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/M508275/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R029253/1 INNOVATE UK 70628-492126 TS/P002560/1 EUROPEAN COMMISSION - FP6/FP7 604391 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R03480X/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL UNSPECIFIED |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jan 2025 11:52 |
Last Modified: | 17 Jan 2025 11:52 |
Published Version: | https://doi.org/10.1103/physrevb.110.235411 |
Status: | Published |
Publisher: | American Physical Society (APS) |
Refereed: | Yes |
Identification Number: | 10.1103/physrevb.110.235411 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:221519 |