Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 31, Pages 9034-9038Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201703539
Keywords
cyanine dyes; non-radiative energy transfer; quantum entanglement; strong coupling
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Funding
- International Center for Frontier Research in Chemistry (icFRC, Strasbourg)
- ANR Equipex Union [ANR-10-EQPX-52-01]
- Labex NIE projects [ANR-11-LABX-0058 NIE]
- CSC within the Investissement d'Avenir program [ANR-10-LABX-0026 CSC, ANR-10-IDEX-0002-02]
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Light-matter strong coupling allows for the possibility of entangling the wave functions of different molecules through the light field. We hereby present direct evidence of non-radiative energy transfer well beyond the Forster limit for spatially separated donor and acceptor cyanine dyes strongly coupled to a cavity. The transient dynamics and the static spectra show an energy transfer efficiency approaching 37% for donor-acceptor distances >= 100 nm. In such systems, the energy transfer process becomes independent of distance as long as the coupling strength is maintained. This is consistent with the entangled and delocalized nature of the polaritonic states.
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