248 citations · 725 across the 10 of their papers we have counts for
10 papers
Vibronic Landscape of Excitons in Photosynthetic Antenna
Manuel J. Llansola-Portoles, James Sturgis, Andrew Gall +3
Light-harvesting and excitation energy transfer in photosynthesis generally involve chlorophyll-molecules, maintained by their host proteins at short distances from each other, thi…
Diversity of coherences and origin of electronic transitions of supermolecular nanoring
Vytautas Butkus, Jan Alster, Eglė Bašinskaitė +6
Quantum coherence is highly involved in photochemical functioning of complex molecular systems. Co-existence and intermixing of electronic and/or vibrational coherences, while neve…
Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study
Vytautas Butkus, Andrius Gelzinis, Ramūnas Augulis +6
The energy transfer processes and coherent phenomena in the fucoxanthin-chlorophyll protein complex, which is responsible for the light harvesting function in marine algae diatoms,…
Vibronic phenomena and exciton-vibrational interference in two-dimensional spectra of molecular aggregates
Vytautas Butkus, Leonas Valkunas, Darius Abramavicius
A general theory of electronic excitations in aggregates of molecules coupled to intramolecular vibrations and the harmonic environment is developed for simulation of the third-ord…
Distinctive character of electronic and vibrational coherences in disordered molecular aggregates
Vytautas Butkus, Donatas Zigmantas, Darius Abramavicius +1
Coherent dynamics of coupled molecules are effectively characterized by the two-dimensional (2D) electronic coherent spectroscopy. Depending on the coupling between electronic and…
Molecular vibrations-induced quantum beats in two-dimensional electronic spectroscopy
Vytautas Butkus, Leonas Valkunas, Darius Abramavicius
Quantum beats in nonlinear spectroscopy of molecular aggregates are often attributed to electronic phenomena of excitonic systems, while nuclear degrees of freedom are commonly inc…
Vibrational vs. electronic coherences in 2D spectrum of molecular systems
Vytautas Butkus, Donatas Zigmantas, Leonas Valkunas +1
The two-dimensional spectroscopy has recently revealed oscillatory behavior of excitation dynamics in molecular systems. However, in the majority of cases it is strongly debated if…
Excitation Dynamics and Relaxation in a Molecular Heterodimer
V. Balevicius, A. Gelzinis, D. Abramavicius +2
The exciton dynamics in a molecular heterodimer is studied as a function of differences in excitation and reorganization energies, asymmetry in transition dipole moments and excite…
Decoherence in Weakly Coupled Excitonic Complexes
Tomas Mancal, Vytautas Balevicius, Leonas Valkunas
Equations of motion for weakly coupled excitonic complexes are derived. The description allows to treat the system in the basis of electronic states localized on individual chromop…
Exciton Dynamics in Photosynthetic Complexes: Excitation by Coherent and Incoherent Light
Tomas Mancal, Leonas Valkunas
In this paper we consider dynamics of a molecular system subjected to external pumping by a light source. Within a completely quantum mechanical treatment, we derive a general form…