Room-temperature quantum coherence of entangled multiexcitons in a metal-organic framework
- 1. Kyushu University
- 2. Kobe University
- 3. RIKEN
Description
Singlet fission (SF) can generate an exchange-coupled quintet triplet pair state 5TT, which could lead to the realization of quantum computing and quantum sensing using entangled multiple qubits even at room temperature. However, the observation of the quantum coherence of 5TT has been limited to cryogenic temperatures, and the fundamental question is what kind of material design will enable its room-temperature quantum coherence. Here we show that the quantum coherence of SF-derived 5TT in a chromophore-integrated metal-organic framework (MOF) can be over hundred nanoseconds at room temperature. The subtle motion of the chromophores in ordered domains within the MOF leads to the enough fluctuation of the exchange interaction necessary for 5TT generation, but at the same time does not cause severe 5TT decoherence. Furthermore, the phase and amplitude of quantum beating can be controlled by molecular motion, opening the way to room-temperature molecular quantum computing based on multiple quantum gate control.
Notes
Funding provided by: Sumitomo Foundation
Crossref Funder Registry ID: https://ror.org/01nmpj461
Award Number:
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP20H02713
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP22K19051
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP20K21174
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP20KK0120
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP22K19008
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JPMJFS2132
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP20H05832
Funding provided by: Japan Science and Technology Agency
Crossref Funder Registry ID: https://ror.org/00097mb19
Award Number: JPMJFR201Y
Funding provided by: Japan Science and Technology Agency
Crossref Funder Registry ID: https://ror.org/00097mb19
Award Number: JPMJSP2136
Funding provided by: Murata (Japan)
Crossref Funder Registry ID: https://ror.org/04hd8bd67
Award Number:
Funding provided by: Research Foundation for Opto-Science and Technology
Crossref Funder Registry ID: https://ror.org/01fvvv243
Award Number:
Funding provided by: Kyushu University
Crossref Funder Registry ID: https://ror.org/00p4k0j84
Award Number:
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP23KJ1694
Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: https://ror.org/00hhkn466
Award Number: JP20H05676
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