Search Results - "Toutounji, Mohamad"

Empirical asymmetric phonon sideband due to phonons in the protein matrix present in photosynthetic complexes: Time-domain response theory by Toutounji, Mohamad

“…The phonon spectral density plays a key role in probing the dynamical and spectral behavior of molecular aggregates. One may utilize the intimate connection…”
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Morse Oscillator Propagator Using its Coherent States: Exact and Approximate by Toutounji, Mohamad

“…Morse oscillator coherent states are employed to derive an analytical expression of its off-diagonal propagator. An exact expression for the Morse oscillator…”
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Vibration assisted electron tunnelling in COVID-19 infection using quantum state diffusion by Haseeb, Muhammad Waqas, Toutounji, Mohamad

“…The spread of the COVID-19 virus has become a global health crisis, and finding effective treatments and preventions is a top priority. The field of quantum…”
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Dextran Sodium Sulfate-Induced Impairment of Protein Trafficking and Alterations in Membrane Composition in Intestinal Caco-2 Cell Line by Toutounji, Mohamad, Wanes, Dalanda, El-Harakeh, Mohammad, El-Sabban, Marwan, Rizk, Sandra, Naim, Hassan Y

“…A key morphological feature of inflammatory bowel disease (IBD) is the loss of the barrier function of intestinal epithelial cells. The present study…”
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Rosa canina L . Can Restore Endoplasmic Reticulum Alterations, Protein Trafficking and Membrane Integrity in a Dextran Sulfate Sodium-Induced Inflammatory Bowel Disease Phenotype by Wanes, Dalanda, Toutounji, Mohamad, Sebai, Hichem, Rizk, Sandra, Naim, Hassan Y

“… is a natural polyphenol-rich medicinal plant that exhibits antioxidant and anti-inflammatory activities. Recent in vivo studies have demonstrated that a…”
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Homogeneous Dephasing in Photosynthetic Bacterial Reaction Centers: Time Correlation Function Approach by Toutounji, Mohamad

“…A new tractable linear electronic transition dipole moment time correlation function (ETDMTCF) that accurately accounts for electronic dephasing, asymmetry,…”
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Mixed Quantum-Classical Liouville Equation Treatment of Electronic Spectroscopy of Condensed Systems: Harmonic and Anharmonic Electron–Phonon Coupling by Toutounji, Mohamad

“…This Review integrates the use of electronic optical response function theory and the mixed quantum-classical (MQC) Liouville equation (MQCLE), thereby leading…”
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Low-temperature vibronic spectroscopy of condensed chromophore exhibiting inhomogeneous distribution of vibrational frequencies in a mixed quantum-classical environment by Toutounji, Mohamad

“…This work has been motivated by the recent paper by the author [M. Toutounji, , 2021, , 21981] whereby a mixed quantum-classical Liouville equation was used to…”
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Excited state distribution function for probing Herzberg–Teller vibronic coupling using linear optical response theory: Application to glassy pheophytin a by Toutounji, Mohamad

“…The goal of the present work is to develop an excited‐state distribution function that can be used to calculate electronic transition dipole moment time…”
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Electronic dephasing in mixed quantum–classical molecular systems using the spin-boson model by Toutounji, Mohamad

“…Pure electronic dephasing is investigated using the spin-boson Hamiltonian in mixed quantum–classical environment. The spin-boson model used here is a…”
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Spectroscopy of Vibronically Coupled and Duschinskcally Rotated Polyatomic Molecules by Toutounji, Mohamad

“…Electron-vibration coupling (or vibronic coupling) of polyatomic molecules in the condensed phase has received considerable attention experimentally and…”
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Linear and nonlinear Herzberg-Teller vibronic coupling effects. I: Electronic photon echo spectroscopy by Toutounji, Mohamad

“…The dependence of the transition dipole moment on nuclear coordinates gives rise to non-Condon interaction, signaling that the adiabatic Herzberg-Teller…”
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A deeper look into Herzberg-Teller vibronic coupling effect and spectroscopic signature of non-Condon systems by Toutounji, Mohamad

“…[Display omitted] A physical explanation with rigorous basis for the newly emerging vibrational progressions due Herzberg-Teller vibronic coupling that show up…”
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Linear and nonlinear Herzberg−Teller vibronic coupling effects. II: Hole-burning and fluorescence line narrowing spectroscopy by Toutounji, Mohamad

“…Part I of this series showed that Herzberg-Teller vibronic coupling manifests itself in linear spectroscopy through the breakdown of the mirror image symmetry…”
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Morse oscillator propagator in the high temperature limit II: Quantum dynamics and spectroscopy by Toutounji, Mohamad

“…This paper is a continuation of Paper I (Toutounji, 2017) of which motivation was testing the applicability of Morse oscillator propagator whose analytical…”
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Morse oscillator propagator in the high temperature limit I: Theory by Toutounji, Mohamad

“…In an earlier work of the author the time evolution of Morse oscillator was studied analytically and exactly at low temperatures whereupon optical correlation…”
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Electronic energy gap correlation function and spectral density of anharmonic molecules at low temperatures I: Theory by Toutounji, Mohamad

“…•The electronic energy gap correlation function of anharmonic molecules is derived.•The corresponding anharmonic spectral density is analytically derived.•A…”
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Electronic energy gap correlation function and spectral density of anharmonic molecules at low temperatures. II: Spectroscopy by Toutounji, Mohamad

“…•An anharmonic line broadening function is derived.•This function may be fitted into the Brownian oscillator model.•It may also directly be used in calculating…”
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A new methodology for dealing with time-dependent quantities in anharmonic molecules I: theory by Toutounji, Mohamad

“…Morse oscillator coherent states tool has not witnessed much use or applications in quantum dynamics and non-equilibrium statistical mechanics due to the lack…”
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Testing the Condon Approximation for Electron Transfer via the Mulliken−Hush Model by Toutounji, Mohamad M, Ratner, Mark A

“…For nonadiabatic electron-transfer reactions, it is common to make a Condon approximation assumption that the mixing matrix element is independent of nuclear…”
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