Abstract
Solid-state atomlike systems have great promise for linear optic quantum computing and quantum communication but are burdened by phonon sidebands and broadening due to surface charges. Nevertheless, coupling to a small-mode-volume cavity would allow high rates of extraction from even highly dephased emitters. We consider the nitrogen-vacancy center in diamond, a system understood to have a poor quantum optics interface with highly distinguishable photons, and design a silicon nitride cavity that allows 99% efficient extraction of photons at 200 K with an indistinguishability of > 50%, improvable by external filtering. We analyze our design using Lumerical fdtd simulations and treat optical emission using a cavity-QED master equation valid at and beyond strong coupling and that includes both zero-phonon line broadening and sideband emission. The simulated design is compact ( <10 𝜇m) and, owing to its planar geometry, can be fabricated using standard silicon processes. Our work therefore points toward scalable fabrication of noncryogenic atomlike efficient sources of indistinguishable photons.
Original language | English |
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Article number | 034029 |
Journal | Physical Review Applied |
Volume | 15 |
Issue number | 3 |
DOIs | |
Publication status | Published - 10 Mar 2021 |
Bibliographical note
Funding Information:J.S. thanks Felipe Ortiz Huerta and Jorge Monroy Ruz for useful discussions. This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) (Grants No. EP/L015544/1, No. EP/S023607/1, and No. EP/M024458/1), the European Research Council (ERC) (SBS 3-5, 758843), and the British Council (Grant No. IL 6 352345416).
Publisher Copyright:
© 2021 American Physical Society.
Research Groups and Themes
- Bristol Quantum Information Institute
- QETLabs
- Photonics and Quantum
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Efficient spin-photon interfaces for distributing entanglement
Smith, J. (Author), Rarity, J. (Supervisor) & Coimbatore Balram, K. (Supervisor), 23 Jan 2020Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)
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