Dynamics of Molecular Excitons Books

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Dynamics of Molecular Excitons


Dynamics of Molecular Excitons
  • Author : Seogjoo J. Jang
  • Publisher : Elsevier
  • Release : 2020-04-25
  • ISBN : 9780081023365
  • Language : En, Es, Fr & De
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Dynamics of Molecular Excitons provides a comprehensive, but concise description of major theories on the dynamics of molecular excitons, intended to serve as a self-contained resource on the topic. Designed to help those new to this area gain proficiency in this field, experts will also find the book useful in developing a deeper understanding of the subject. The starting point of the book is the standard microscopic definition of molecular Hamiltonians presented in commonly accepted modern quantum mechanical notations. Major assumptions and approximations involved in constructing Frenkel-type exciton Hamiltonians, which are well established, but are often hidden under arcane notations and approximations of old publications, are presented in detail. This will help quantum chemists understand the major assumptions involved in the definition of commonly used exciton models. Rate theories of exciton dynamics, such as Förster and Dexter theories and their modern generalizations, are presented in a unified and detailed manner. In addition, important aspects that are often neglected, such as local field effect and the role of fluctuating environments, are discussed. Various quantum dynamics methods allowing coherent dynamics of excitons are presented in a systematic manner in the context of quantum master equations or path integral formalisms. The author also provides a detailed theoretical explanation for the major spectroscopic techniques probing exciton dynamics, including modern two-dimensional electronic spectroscopy, with a critical assessment of the implications of these spectroscopic measurements. Finally, the book includes a brief overview of major applications including an explanation of organic photovoltaic materials and natural light harvesting complexes. Covers major theories of exciton dynamics in a consciously concise and easily readable way Bridges the gap between quantum dynamics working with phenomenological exciton Hamiltonian and quantum chemistry construct reliable models amenable for dynamics calculations from ab initio calculations Explores modern nonlinear electronic spectroscopy techniques to probe exciton dynamics, showing how it is applied

Exciton Dynamics in Molecular Crystals and Aggregates


Exciton Dynamics in Molecular Crystals and Aggregates
  • Author :
  • Publisher : Springer
  • Release : 2006-04-11
  • ISBN : 9783540390688
  • Language : En, Es, Fr & De
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Dissipative Exciton Dynamics in Light Harvesting Complexes


Dissipative Exciton Dynamics in Light Harvesting Complexes
  • Author : Marco Schröter
  • Publisher : Springer
  • Release : 2015-03-18
  • ISBN : 9783658092825
  • Language : En, Es, Fr & De
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Marco Schröter investigates the influence of the local environment on the exciton dynamics within molecular aggregates, which build, e.g., the light-harvesting complexes of plants, bacteria or algae by means of the hierarchy equations of motion (HEOM) method. He addresses the following questions in detail: How can coherent oscillations within a system of coupled molecules be interpreted? What are the changes in the quantum dynamics of the system for increasing coupling strength between electronic and nuclear degrees of freedom? To what extent does decoherence govern the energy transfer properties of molecular aggregates?.

Quantum Dynamics of Complex Molecular Systems


Quantum Dynamics of Complex Molecular Systems
  • Author : David A. Micha
  • Publisher : Springer Science & Business Media
  • Release : 2006-11-22
  • ISBN : 9783540344605
  • Language : En, Es, Fr & De
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Quantum phenomena are ubiquitous in complex molecular systems - as revealed by many experimental observations based upon ultrafast spectroscopic techniques - and yet remain a challenge for theoretical analysis. The present volume, based on a May 2005 workshop, examines and reviews the state-of-the-art in the development of new theoretical and computational methods to interpret the observed phenomena. Emphasis is on complex molecular processes involving surfaces, clusters, solute-solvent systems, materials, and biological systems. The research summarized in this book shows that much can be done to explain phenomena in systems excited by light or through atomic interactions. It demonstrates how to tackle the multidimensional dynamics arising from the atomic structure of a complex system, and addresses phenomena in condensed phases as well as phenomena at surfaces. The chapters on new methodological developments cover both phenomena in isolated systems, and phenomena which involve the statistical effects of an environment, such as fluctuations and dissipation. The methodology part explores new rigorous ways to formulate mixed quantum-classical dynamics in many dimensions, along with new ways to solve a many-atom Schroedinger equation, or the Liouville-von Neumann equation for the density operator, using trajectories and ideas related to hydrodynamics. Part I treats applications to complex molecular systems, and Part II covers new theoretical and computational methods

Exciton Dynamics in Self Assembled Molecular Nanotubes


Exciton Dynamics in Self Assembled Molecular Nanotubes
  • Author :
  • Publisher :
  • Release : 2020
  • ISBN : 9403424540
  • Language : En, Es, Fr & De
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