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Description
  • Using the reduced density matrix formalism the time dependence of the anisotropy of the fluorescence in light-harvesting ring systems LH2 of purple bacteria is calculated. In contrast to the work of Kumble and Hochstrasser (J. Chem. Phys. 109 (1998) 855) static disorder (fluctuations of the site energies) as well as dynamic disorder (dissipation) is taken into account. For the description of dissipation we use the Non-Markovian version of Čápek's theory in local states. It can be demonstrated that the dissipation is important for the time-dependent anisotropy of the fluorescence. Smaller values of static disorder are sufficient to produce the same decay rates in the anisotropy in comparison with the results by Kumble and Hochstrasser. The influence of the non-markovian terms is thoroughly discussed.
  • Using the reduced density matrix formalism the time dependence of the anisotropy of the fluorescence in light-harvesting ring systems LH2 of purple bacteria is calculated. In contrast to the work of Kumble and Hochstrasser (J. Chem. Phys. 109 (1998) 855) static disorder (fluctuations of the site energies) as well as dynamic disorder (dissipation) is taken into account. For the description of dissipation we use the Non-Markovian version of Čápek's theory in local states. It can be demonstrated that the dissipation is important for the time-dependent anisotropy of the fluorescence. Smaller values of static disorder are sufficient to produce the same decay rates in the anisotropy in comparison with the results by Kumble and Hochstrasser. The influence of the non-markovian terms is thoroughly discussed. (en)
  • Za použití formalismu redukované matice hustoty je počítána časová závislost anizotropie fluorescence v prstencových systémech LH2 z purpurových bakterií.Na rozdíl od práce Kumbla and Hochstrassera (J. Chem. Phys. 109 (1998) 855) je současně zahrnut jak statický nepořádek (fluktuace lokálních energií), tak dynamický nepořádek (disipace). Pro popis disipace je užita nemarkovovská verze Čápkovy teorie. Je demonstrována důležitost disipace pro časovou závislost anizotropie fluorescence.Menší hodnoty statického nepořádku jsou dostačující k produkování poklesu anizotropie srovnatelného s výsledky Kumbla a Hochstrassera. Je diskutován vliv nemarkovovských členů. (cs)
Title
  • Non-Markovian effects in the anisotropy of emission in the ring antenna subunits of purple bacteria photosynthetic systems
  • Non-Markovian effects in the anisotropy of emission in the ring antenna subunits of purple bacteria photosynthetic systems (en)
  • Nemarkovovské efekty v emisní anizotropii v prstencových jednotkách fotosyntetických systémů purpurových bakterií (cs)
skos:prefLabel
  • Non-Markovian effects in the anisotropy of emission in the ring antenna subunits of purple bacteria photosynthetic systems
  • Non-Markovian effects in the anisotropy of emission in the ring antenna subunits of purple bacteria photosynthetic systems (en)
  • Nemarkovovské efekty v emisní anizotropii v prstencových jednotkách fotosyntetických systémů purpurových bakterií (cs)
skos:notation
  • RIV/62690094:18440/03:00001498!RIV06-GA0-18440___
http://linked.open.../vavai/riv/strany
  • 579-605
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/03/0817), Z(MSM 113200001)
http://linked.open...iv/cisloPeriodika
  • 7
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 618151
http://linked.open...ai/riv/idVysledku
  • RIV/62690094:18440/03:00001498
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • exciton transfer; density matrix theory; fluorescence (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [33B9B6077701]
http://linked.open...i/riv/nazevZdroje
  • Czechoslovak journal of Physics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 53
http://linked.open...iv/tvurceVysledku
  • Heřman, Pavel
  • Barvík, Ivan
http://linked.open...n/vavai/riv/zamer
issn
  • 0011-4626
number of pages
http://localhost/t...ganizacniJednotka
  • 18440
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