Photonic “hourglass” design beyond the standard bulk model of phonon decoherence
We study the impact of mechanical vibrations on the performance of the photonic “hourglass” structure, which is predicted to emit single photons on demand with near-unity efficiency and indistinguishability. Previous investigations neglected the impact of vibrational modes inherent to this quasi-1D...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-03-01
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| Series: | APL Quantum |
| Online Access: | http://dx.doi.org/10.1063/5.0231204 |
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| author | José Ferreira Neto Benedek Gaál Luca Vannucci Niels Gregersen |
| author_facet | José Ferreira Neto Benedek Gaál Luca Vannucci Niels Gregersen |
| author_sort | José Ferreira Neto |
| collection | DOAJ |
| description | We study the impact of mechanical vibrations on the performance of the photonic “hourglass” structure, which is predicted to emit single photons on demand with near-unity efficiency and indistinguishability. Previous investigations neglected the impact of vibrational modes inherent to this quasi-1D geometry, relying instead on a three-dimensional bulk assumption for the phonon modes. However, it has been shown that phonon decoherence has a much stronger impact on 1D structures as compared with bulk media. Here, we surprisingly demonstrate the robustness of the photonic hourglass design, achieving close-to-unity indistinguishability even by incorporating a detailed description of the vibrational modes. We explain this unexpected result in terms of the large Purcell enhancement of the hourglass single-photon source, which eliminates the negative effect of phonons. Our findings highlight the key role of high-Q optical cavities in mitigating the detrimental effect of phonon decoherence, even for structures of reduced dimensionality. |
| format | Article |
| id | doaj-art-1b9eaeb1f3ec4a36aec84a3bfa68b9f3 |
| institution | DOAJ |
| issn | 2835-0103 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Quantum |
| spelling | doaj-art-1b9eaeb1f3ec4a36aec84a3bfa68b9f32025-08-20T03:03:49ZengAIP Publishing LLCAPL Quantum2835-01032025-03-0121016103016103-710.1063/5.0231204Photonic “hourglass” design beyond the standard bulk model of phonon decoherenceJosé Ferreira Neto0Benedek Gaál1Luca Vannucci2Niels Gregersen3Department of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, DenmarkDepartment of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, DenmarkDepartment of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, DenmarkDepartment of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, DenmarkWe study the impact of mechanical vibrations on the performance of the photonic “hourglass” structure, which is predicted to emit single photons on demand with near-unity efficiency and indistinguishability. Previous investigations neglected the impact of vibrational modes inherent to this quasi-1D geometry, relying instead on a three-dimensional bulk assumption for the phonon modes. However, it has been shown that phonon decoherence has a much stronger impact on 1D structures as compared with bulk media. Here, we surprisingly demonstrate the robustness of the photonic hourglass design, achieving close-to-unity indistinguishability even by incorporating a detailed description of the vibrational modes. We explain this unexpected result in terms of the large Purcell enhancement of the hourglass single-photon source, which eliminates the negative effect of phonons. Our findings highlight the key role of high-Q optical cavities in mitigating the detrimental effect of phonon decoherence, even for structures of reduced dimensionality.http://dx.doi.org/10.1063/5.0231204 |
| spellingShingle | José Ferreira Neto Benedek Gaál Luca Vannucci Niels Gregersen Photonic “hourglass” design beyond the standard bulk model of phonon decoherence APL Quantum |
| title | Photonic “hourglass” design beyond the standard bulk model of phonon decoherence |
| title_full | Photonic “hourglass” design beyond the standard bulk model of phonon decoherence |
| title_fullStr | Photonic “hourglass” design beyond the standard bulk model of phonon decoherence |
| title_full_unstemmed | Photonic “hourglass” design beyond the standard bulk model of phonon decoherence |
| title_short | Photonic “hourglass” design beyond the standard bulk model of phonon decoherence |
| title_sort | photonic hourglass design beyond the standard bulk model of phonon decoherence |
| url | http://dx.doi.org/10.1063/5.0231204 |
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