High Purcell factor generation of indistinguishable on-chip single photons
- Submitting institution
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The University of Hull
- Unit of assessment
- 12 - Engineering
- Output identifier
- 1396650
- Type
- D - Journal article
- DOI
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10.1038/s41565-018-0188-x
- Title of journal
- Nature nanotechnology
- Article number
- -
- First page
- 835
- Volume
- 13
- Issue
- 9
- ISSN
- 1748-3387
- Open access status
- Compliant
- Month of publication
- July
- Year of publication
- 2018
- URL
-
-
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
13
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Generation of multiple indistinguishable single photons is crucial for quantum computing. Such photon coherence can be accomplished on-chip via Purcell shortening of radiative lifetime in semiconductor quantum dots coupled to photonic crystal cavities; however, only moderate shortening has been observed previously. Here, we demonstrate experimentally a further 10-fold shortening under pulsed resonant excitation. This delivers near-lifetime-limited coherence and sufficient degree of indistinguishability to make secure quantum data transfer feasible, using fully-integrated photonic circuitry. The paper was reported by nine news outlets worldwide, e.g. Photonics.com, and is in the top 5% of all research outputs ever tracked by Altmetric (https://www.altmetric.com/details/21072670)
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -