Polarization-correlated photons from a positively charged quantum dot

Cao, Yameng and Bennett, Anthony J. and Farrer, Ian and Ritchie, David A. and Shields, Andrew J. (2015) Polarization-correlated photons from a positively charged quantum dot. Physical review B, 92. ISSN 1098-0121

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Polarized cross-correlation spectroscopy on a quantum dot charged with a single hole shows the sequential emission of photons with common circular polarization. This effect is visible without magnetic field, but becomes more pronounced as the field along the quantization axis is increased. We interpret the data in terms of electron dephasing in the X+ state caused by the Overhauser field of nuclei in the dot. We predict the correlation time scale can be increased by accelerating the emission rate with cavity QED.

Item Type: Journal Article
Journal or Publication Title: Physical review B
Departments: Faculty of Science and Technology > Physics
ID Code: 84508
Deposited By: ep_importer_pure
Deposited On: 02 Feb 2017 14:34
Refereed?: Yes
Published?: Published
Last Modified: 11 Feb 2020 08:50
URI: https://eprints.lancs.ac.uk/id/eprint/84508

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