# Vibrational vs. electronic coherences in 2D spectrum of molecular systems

@article{Butkus2012VibrationalVE, title={Vibrational vs. electronic coherences in 2D spectrum of molecular systems}, author={Vytautas Butkus and Donatas Zigmantas and Leonas Valkunas and Darius Abramavi{\vc}ius}, journal={Chemical Physics Letters}, year={2012}, volume={545}, pages={40-43} }

## 180 Citations

### Coherent electronic and vibrational dynamics in the electronic 2D spectra of molecular dimers

- Physics, Chemistry2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC
- 2013

Coherent dynamics of excitons are most explicitly observed as oscillations in time-dependent 2D electronic spectra. The need to characterize and understand this complex behaviour has fueled intensive…

### Vibronic phenomena and exciton-vibrational interference in two-dimensional spectra of molecular aggregates.

- Chemistry, PhysicsThe Journal of chemical physics
- 2014

The results allow us to classify and define the typical spectroscopic features of vibronically coupled molecules and separate the cases, when the long-lived quantum coherences due to vibrational lifetime borrowing should be expected.

### Two-dimensional spectroscopy of a molecular dimer unveils the effects of vibronic coupling on exciton coherences.

- Physics, ChemistryNature chemistry
- 2014

This work presents measurements and calculations on a solvated molecular homodimer with clearly resolvable oscillations in the corresponding two-dimensional spectra and finds that although calculations predict a prolongation of this coherence due to vibronic coupling, the combination of dynamic disorder and vibrational relaxation leads to a coherence decay on a timescale comparable to the electronic dephasing time.

### Distinctive character of electronic and vibrational coherences in disordered molecular aggregates

- Physics, Chemistry
- 2013

### Vibronic and Vibrational Coherences in Two-Dimensional Electronic Spectra of Supramolecular J-Aggregates

- PhysicsThe journal of physical chemistry. A
- 2013

A distinction is made between vibrational or vibronic coherence dynamics as the origin of pronounced oscillations in the authors' two-dimensional electronic spectra, based on the analysis of Fourier-transform amplitude maps.

### Origin of long-lived oscillations in 2D-spectra of a quantum vibronic model: electronic versus vibrational coherence.

- PhysicsThe Journal of chemical physics
- 2013

These results link recently proposed microscopic, non-equilibrium mechanisms to support long lived coherence at ambient temperatures with actual experimental observations of oscillatory behaviour using 2D photon echo techniques to corroborate the fundamental importance of the interplay of electronic and vibrational degrees of freedom in the dynamics of light harvesting aggregates.

### Enhancement of Vibronic and Ground-State Vibrational Coherences in 2D Spectra of Photosynthetic Complexes

- PhysicsScientific reports
- 2013

A vibronic-exciton model is applied to investigate the recently proposed mechanism of enhancement of coherent oscillations due to mixing of electronic and nuclear degrees of freedom and concludes that both type of coherences have a similar magnitude at longer population time.

### Unraveling the quantum state mixing of excitonic and vibronic excitations in the dynamics of molecular aggregates

- Physics, Chemistry
- 2015

We report on dissipative exciton dynamics calculations performed with the hierarchy equations of motion method for a molecular heterodimer coupled to a multi‐mode Brownian oscillator bath. Coherent…

### Coupling of multi-vibrational modes in bacteriochlorophyll a in solution observed with 2D electronic spectroscopy

- Physics, Chemistry
- 2017

### Detection of Electronic Coherence via Two-Dimensional Electronic Spectroscopy in Condensed Phase

- Physics, Chemistry
- 2018

Two dimensional Fourier transform electronic spectroscopy (2DES) in the visible region enables direct observation of complex dynamics of molecules including quantum coherence in the condensed phase.…

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