Identifying Sources of Entanglement Loss in Photodriven Molecular Electron Spin Teleportation.
J Am Chem Soc
; 146(29): 20133-20140, 2024 Jul 24.
Article
em En
| MEDLINE
| ID: mdl-38995837
ABSTRACT
We report on an electron donor-electron acceptor-stable radical (D-A-Râ¢) molecule in which an electron spin state first prepared on R⢠is followed by photogeneration of an entangled singlet 1[Dâ¢+-Aâ¢-] spin pair to produce Dâ¢+-Aâ¢--Râ¢. Since the Aâ¢- and R⢠spins within Dâ¢+-Aâ¢--R⢠are uncorrelated, spin teleportation from R⢠to Dâ¢+ occurs with a maximal 25% efficiency only for the singlet pair 1(Aâ¢--Râ¢) by spin-allowed electron transfer from Aâ¢- to Râ¢. However, since 1[Dâ¢+-Aâ¢-] is sufficiently long-lived, coherent spin mixing involving the unreactive 3(Aâ¢--Râ¢) population affects entanglement and teleportation within Dâ¢+-Aâ¢--Râ¢. Pulse electron paramagnetic resonance experiments show a direct correlation between electron spin flip-flops and entanglement loss, providing information for designing molecular materials to serve as nanoscale quantum device interconnects.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
J Am Chem Soc
Ano de publicação:
2024
Tipo de documento:
Article
País de publicação:
Estados Unidos