Enhanced quantum entanglement in the non-Markovian dynamics of biomolecular excitons
We show that quantum coherence of biomolecular excitons is maintained over exceedingly long times due to the constructive role of their non-Markovian protein-solvent environment. Using a numerically exact approach, we demonstrate that a slow quantum bath helps to sustain quantum entanglement of two...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2009
- Institución:
- Ministerio de Ciencia, Tecnología e Innovación
- Repositorio:
- Repositorio Minciencias
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.minciencias.gov.co:20.500.14143/21662
- Acceso en línea:
- https://repositorio.minciencias.gov.co/handle/20.500.14143/21662
- Palabra clave:
- Fluorescencia
Composición de la materia -- Propiedades químicas
Estructura molecular
Números cuánticos
Teoría molecular
Bioquímica analítica
- Rights
- License
- http://purl.org/coar/access_right/c_f1cf
| Summary: | We show that quantum coherence of biomolecular excitons is maintained over exceedingly long times due to the constructive role of their non-Markovian protein-solvent environment. Using a numerically exact approach, we demonstrate that a slow quantum bath helps to sustain quantum entanglement of two pairs of Forster coupled excitons, in contrast to a Markovian environment. We consider the crossover from a fast to a slow bath and from weak to strong dissipation and show that a slow bath can generate robust entanglement. This persists to surprisingly high temperatures, even higher than the excitonic gap and is absent for a Markovian bath. |
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