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== <span style="color:crimson;">'''Reaction Rates and Quantum Coherence Effects in Natural Processes: Photosynthetic Energy Transfer and Photoisomerization'''</span> ==[[File:L1.png|right|400px]]
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== <span style="color:crimson;">'''Reaction Rates and Quantum Coherence Effects in Natural Processes: Photosynthetic Energy Transfer and Photoisomerization'''</span> ==
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<div class="book_box">by S. Axelrod and P. Brumer, Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Canada, M5S 3H6
 
<div class="book_box">by S. Axelrod and P. Brumer, Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Canada, M5S 3H6
  

Revision as of 17:52, 28 April 2018

Förster Resonance Energy Transfer and Beyond
Conference: May 2nd through 5th, 2018

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FRET and Beyond - 2018 has ended and we submit to your attention the summary below.

The video recordings of 17 Plenary Lectures are also given below.

We ask you to consider the first call for:

2 FRET & Beyond-2019 - Annual Conference
Berlin | April 4th through 7th, 2019

FUB

Henry Ford Building, Freie Universität Berlin, Garystraße 35, Lecture Hall A (GPS: 52.4479001, 13.278758) [1] FUB1.pngFUB2.png

Registration Fee:

€300 (least developed countries)*

€495 (junior researchers, postdocs & Ph.D. students)

€595 (senior researchers)

€795 (industry)

A great success of a first Förster Resonance Energy Transfer and Beyond meeting (FRET & Beyond) in May of 2018 and encouragement by many researchers across diverse disciplines supports the need for upcoming second FRET & Beyond - 2019 conference.

This time we will meet on April 4th through 7th, 2019 in Henry Ford Building, Freie Universität Berlin, Garystraße 35, Germany.

FRET's amazing and sustained growth in the past years, it's interdisciplinary nature confirms researchers fundamental interest in further studies and experiments. The deadline for registration and abstract submission is January 11th, 2019.

Visit www.LumiPedia.org for updates.

Synopsis of the FRET and Beyond -2018 conference

Dear Colleagues and Friends,

Thank you very much for your kind, interesting, and –most importantly –scientific input in advancing of FRET understanding during the conference.

During the meeting, we not only learned about the advancement of the quantum-mechanical understanding of energy transfer phenomenon but also their applications in gaining insight into the nature of the micro-world.

We also had an interesting and enlighting panel discussion concerning the question of Molecular-Scale Circuits: Realistic Goal or Vain Illusion?

I will not describe here the highlights of each invited and plenary lecture – let the authors speak for themselves in the form of video-recorded lectures (see below).

The meeting was a success on all scientific and personal levels, and we have decided to continue and invite interested researchers to an upcoming Annual Conference – 2 FRET & Beyond – 2019; April 4th through 7th, 2019. This time, we invite you to Freie Universität Berlin, Germany.

Plenary Lectures Video Recordings

(Technical remark: due to the different technicalities and requirements of each individual presentation we were unable to develop a coherent format for a video presentation of lectures.)

1 Reaction Rates and Quantum Coherence Effects in Natural Processes: Photosynthetic Energy Transfer and Photoisomerization

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by S. Axelrod and P. Brumer, Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Canada, M5S 3H6

The observation of wavelike energy transport in photosynthesis has triggered a debate about the extent to which quantum mechanics is necessary to understand biological processes. The relevance of quantum effects has been considered in the context of both photosynthesis and photoisomerization. Intimately related to the question of quantum coherence in biological processes is the time-scale of such reactions. The weak effect of environment-induced deco-herence on photoisomerization, for example, has been justified by the supposed ultra-fast time-scale of the reaction. However, conclusions regarding reaction rates and coherent effects in such processes have been drawn on the basis of experiments using pulsed laser excitation. As is well known, the dynamics induced by incoherent, continuous wave natural sunlight differ substantially from the dynamics induced by ultra-fast excitation. In this work we present three results related to photoisomerization. First, we show that under natural incoherent excitation, the rate of product formation bears no connection to the rates observed under pulsed laser excitation. Second, oscillatory coherences, if generated, decay on time-scales that are small compared to the overall reaction time-scale. Third, stationary coherences, which arise in the presence of an environment, can have a small effect on the rate of reaction by enhancing or diminishing the probability of energy transfer through certain pathways. Similar results are presented for photosynthetic energy transfer, and implications for FRET are discussed.

2 Interatomic Coulomb decay and Förster resonance energy transfer in dielectric environments

by Institute of Physics, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany
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