Room-temperature quantum coherence of entangled multiexcitons in a metal-organic framework.

ABSTRACT: Singlet fission 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 singlet fission-derived ⁵TT in a chromophore-integrated metal-organic framework can be over hundred nanoseconds at room temperature. The suppressed motion of the chromophores in ordered domains within the metal-organic framework leads to the enough fluctuation of the exchange interaction nece

SUBMITTER: Yamauchi A 

PROVIDER: S-EPMC10775993 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature