3 years ago

Control of excitation energy transfer in molecular systems by Floquet engineering.

Akihito Ishizaki, Nguyen Thanh Phuc

Excitation energy transfer (EET) is one of the most important processes in both natural and artificial chemical systems including, for example, photosynthetic complexes and organic solar cells. The EET rate, however, is exponentially suppressed when there is a large difference in the excitation energy between the donor and acceptor molecules. Here we show both analytically and numerically that the EET rate can be strongly enhanced by periodically modulating the excitation energy of one molecule via a driven oscillating charged particle that is trapped in close proximity to the molecule. Using the so-called Floquet-engineering, where the system's Hamiltonian is periodically modulated, the enhancement of EET turns out to be robust even in the presence of fluctuations and dissipations induced by the coupling with a huge number of dynamic degrees of freedom in the surrounding molecular environments.

Publisher URL: http://arxiv.org/abs/1801.02813

DOI: arXiv:1801.02813v1

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.