Quantum Interference of Resonance Fluorescence from Germanium-Vacancy Color Centers in Diamond.

Chen, D; Fröch, JE; Ru, S; Cai, H; Wang, N; Adamo, G; Scott, J; Li, F; Zheludev, N; Aharonovich, I; Gao, W

Quantum Interference of Resonance Fluorescence from Germanium-Vacancy Color Centers in Diamond.

Chen, D Fröch, JE Ru, S Cai, H Wang, N Adamo, G Scott, J

Li, F Zheludev, N Aharonovich, I

Gao, W

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Publisher:: American Chemical Society
Publication Type:: Journal Article
Citation:: Nano Letters: a journal dedicated to nanoscience and nanotechnology, 2022, 22, (15), pp. 6306-6312
Issue Date:: 2022-08-10

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Field	Value	Language
dc.contributor.author	Chen, D
dc.contributor.author	Fröch, JE
dc.contributor.author	Ru, S
dc.contributor.author	Cai, H
dc.contributor.author	Wang, N
dc.contributor.author	Adamo, G
dc.contributor.author	Scott, J https://orcid.org/0000-0002-3972-4351
dc.contributor.author	Li, F
dc.contributor.author	Zheludev, N
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.contributor.author	Gao, W
dc.date.accessioned	2022-11-17T01:59:54Z
dc.date.available	2022-11-17T01:59:54Z
dc.date.issued	2022-08-10
dc.identifier.citation	Nano Letters: a journal dedicated to nanoscience and nanotechnology, 2022, 22, (15), pp. 6306-6312
dc.identifier.issn	1530-6984
dc.identifier.issn	1530-6992
dc.identifier.uri	http://hdl.handle.net/10453/163536
dc.description.abstract	Resonance fluorescence from a quantum emitter is an ideal source to extract indistinguishable photons. By using the cross-polarization to suppress the laser scattering, we observed resonance fluorescence from GeV color centers in diamond at cryogenic temperature. The Fourier-transform-limited line width emission with T2/2T1 ∼ 0.86 allows for two-photon interference based on single GeV color center. Under pulsed excitation, the separated photons exhibit a Hong-Ou-Mandel quantum interference above classical limit, whereas the continuous-wave excitation leads to a coalescence time window of 1.05 radiative lifetime. In addition, we demonstrated a single-shot readout of spin states with a fidelity of 74%. Our experiments lay down the foundation for building a quantum network with GeV color centers in diamond.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	American Chemical Society
dc.relation	http://purl.org/au-research/grants/arc/CE200100010
dc.relation.ispartof	Nano Letters: a journal dedicated to nanoscience and nanotechnology
dc.relation.isbasedon	10.1021/acs.nanolett.2c01959
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Quantum Interference of Resonance Fluorescence from Germanium-Vacancy Color Centers in Diamond.
dc.type	Journal Article
utslib.citation.volume	22
utslib.location.activity	United States
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-11-17T01:59:52Z
pubs.issue	15
pubs.publication-status	Published
pubs.volume	22
utslib.citation.issue	15

Abstract:

Resonance fluorescence from a quantum emitter is an ideal source to extract indistinguishable photons. By using the cross-polarization to suppress the laser scattering, we observed resonance fluorescence from GeV color centers in diamond at cryogenic temperature. The Fourier-transform-limited line width emission with T2/2T1 ∼ 0.86 allows for two-photon interference based on single GeV color center. Under pulsed excitation, the separated photons exhibit a Hong-Ou-Mandel quantum interference above classical limit, whereas the continuous-wave excitation leads to a coalescence time window of 1.05 radiative lifetime. In addition, we demonstrated a single-shot readout of spin states with a fidelity of 74%. Our experiments lay down the foundation for building a quantum network with GeV color centers in diamond.

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http://hdl.handle.net/10453/163536