liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Spin-controlled generation of indistinguishable and distinguishable photons from silicon vacancy centres in silicon carbide
Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany; DENSO CORP, Japan.
Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany.
Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany.
Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany.
Show others and affiliations
2020 (English)In: Nature Communications, E-ISSN 2041-1723, Vol. 11, no 1Article in journal (Refereed) Published
Abstract [en]

Quantum systems combining indistinguishable photon generation and spin-based quantum information processing are essential for remote quantum applications and networking. However, identification of suitable systems in scalable platforms remains a challenge. Here, we investigate the silicon vacancy centre in silicon carbide and demonstrate controlled emission of indistinguishable and distinguishable photons via coherent spin manipulation. Using strong off-resonant excitation and collecting zero-phonon line photons, we show a two-photon interference contrast close to 90% in Hong-Ou-Mandel type experiments. Further, we exploit the systems intimate spin-photon relation to spin-control the colour and indistinguishability of consecutively emitted photons. Our results provide a deep insight into the systems spin-phonon-photon physics and underline the potential of the industrially compatible silicon carbide platform for measurement-based entanglement distribution and photonic cluster state generation. Additional coupling to quantum registers based on individual nuclear spins would further allow for high-level network-relevant quantum information processing, such as error correction and entanglement purification. Defects in silicon carbide can act as single photon sources that also have the benefit of a host material that is already used in electronic devices. Here the authors demonstrate that they can control the distinguishability of the emitted photons by changing the defect spin state.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2020. Vol. 11, no 1
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:liu:diva-166480DOI: 10.1038/s41467-020-16330-5ISI: 000537058800002PubMedID: 32433556OAI: oai:DiVA.org:liu-166480DiVA, id: diva2:1444136
Note

Funding Agencies|European Research Council (ERC)European Research Council (ERC); European Commission Marie Curie ETN "QuSCo" [765267]; Max Planck SocietyMax Planck SocietyFoundation CELLEX; Humboldt FoundationAlexander von Humboldt Foundation; German Research FoundationGerman Research Foundation (DFG) [SPP 1601]; Carl-Zeiss-Stiftung; Swedish Research CouncilSwedish Research Council [VR 2016-04068]; Swedish Energy AgencySwedish Energy Agency [43611-1]; Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation [KAW 2018.0071]; EUEuropean Union (EU) [862721]; Japan Society for the Promotion of ScienceMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science [JSPS KAKENHI 17H01056, 18H03770]; National Excellence Program of Quantum-Coherent Materials Project (Hungarian NKFIH) [KKP129866]; EU QuantERA Q-Magine Project [127889]; QuantERA Nanospin Project [127902]; National Quantum Technology Program [2017-1.2.1-NKP-2017-00001]

Available from: 2020-06-20 Created: 2020-06-20 Last updated: 2023-03-28

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Ul-Hassan, JawadNguyen, Son Tien
By organisation
Semiconductor MaterialsFaculty of Science & Engineering
In the same journal
Nature Communications
Other Physics Topics

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 20 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf