Understanding And Manipulating Electronic Quantum Coherence In Photosynthetic Light Harvesting

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Understanding and Manipulating Electronic Quantum Coherence in Photosynthetic Light-harvesting

Author : Stephan Hoyer
Publisher :
ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (957 download)

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Book Synopsis Understanding and Manipulating Electronic Quantum Coherence in Photosynthetic Light-harvesting by : Stephan Hoyer

Download or read book Understanding and Manipulating Electronic Quantum Coherence in Photosynthetic Light-harvesting written by Stephan Hoyer and published by . This book was released on 2013 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrafast spectroscopy experiments show that photosynthetic systems can preserve quantum beats in the process of electronic energy transfer between pigments, even at room temperature. But what does this discovery imply for biology - and for quantum mechanics? This dissertation examines photosynthesis through the tools of quantum information science. We evaluate to what extent photosynthesis can be thought of as a type of quantum technology, and consider how we can apply experimental tools widely used for quantum technologies (state tomography and coherent control) to photosynthesis. Throughout, we use the Fenna-Matthews-Olson (FMO) complex of greens sulfur bacteria as a model photosynthetic pigment-protein complex. In Part I, we evaluate two mechanisms for the possible biological relevance of quantum coherent motion. First, we consider the extent to which dynamics in light-harvesting systems exhibit the quantum speedups characteristic of quantum algorithms and quantum walks. Second, we demonstrate a ratchet effect in electronic energy transfer enabled by partially coherent dynamics. To do so, we build a new model of energy transfer between weakly coupled light-harvesting complexes to understand how electronic coherence arises under natural conditions. In Part II, we present proposals for experimental probes of light harvesting dynamics with ultrafast spectroscopy. We show how the signal from pump-probe spectroscopy can be formally inverted to determine the excited state electronic density matrix. Finally, we examine the feasiblity of coherent control experiments on light-harvesting systems, and provide two realistic targets feasible with present-day technology.

Light Harvesting in Photosynthesis

Author : Roberta Croce
Publisher : CRC Press
ISBN 13 : 1351242873
Total Pages : 793 pages
Book Rating : 4.3/5 (512 download)

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Book Synopsis Light Harvesting in Photosynthesis by : Roberta Croce

Download or read book Light Harvesting in Photosynthesis written by Roberta Croce and published by CRC Press. This book was released on 2018-01-12 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: This landmark collective work introduces the physical, chemical, and biological principles underlying photosynthesis: light absorption, excitation energy transfer, and charge separation. It begins with an introduction to properties of various pigments, and the pigment proteins in plant, algae, and bacterial systems. It addresses the underlying physics of light harvesting and key spectroscopic methods, including data analysis. It discusses assembly of the natural system, its energy transfer properties, and regulatory mechanisms. It also addresses light-harvesting in artificial systems and the impact of photosynthesis on our environment. The chapter authors are amongst the field’s world recognized experts. Chapters are divided into five main parts, the first focused on pigments, their properties and biosynthesis, and the second section looking at photosynthetic proteins, including light harvesting in higher plants, algae, cyanobacteria, and green bacteria. The third part turns to energy transfer and electron transport, discussing modeling approaches, quantum aspects, photoinduced electron transfer, and redox potential modulation, followed by a section on experimental spectroscopy in light harvesting research. The concluding final section includes chapters on artificial photosynthesis, with topics such as use of cyanobacteria and algae for sustainable energy production. Robert Croce is Head of the Biophysics Group and full professor in biophysics of photosynthesis/energy at Vrije Universiteit, Amsterdam. Rienk van Grondelle is full professor at Vrije Universiteit, Amsterdam. Herbert van Amerongen is full professor of biophysics in the Department of Agrotechnology and Food Sciences at Wageningen University, where he is also director of the MicroSpectroscopy Research Facility. Ivo van Stokkum is associate professor in the Department of Physics and Astronomy, Faculty of Sciences, at Vrije Universiteit, Amsterdam.

Measuring Quantum Effects in Photosynthetic Light-harvesting Complexes with Multipartite Entanglement

Author : Cathal Smyth
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Measuring Quantum Effects in Photosynthetic Light-harvesting Complexes with Multipartite Entanglement by : Cathal Smyth

Download or read book Measuring Quantum Effects in Photosynthetic Light-harvesting Complexes with Multipartite Entanglement written by Cathal Smyth and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Photosynthetic Excitons

Author : Herbert van Amerongen
Publisher : World Scientific
ISBN 13 : 9789810232801
Total Pages : 612 pages
Book Rating : 4.2/5 (328 download)

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Book Synopsis Photosynthetic Excitons by : Herbert van Amerongen

Download or read book Photosynthetic Excitons written by Herbert van Amerongen and published by World Scientific. This book was released on 2000 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excitons are considered as the basic concept used by describing the spectral properties of photosynthetic pigment-protein complexes and excitation dynamics in photosynthetic light-harvesting antenna and reaction centers. Following the recently obtained structures of a variety of photosynthetic pigment-protein complexes from plants and bacteria our interest in understanding the relation between structure, function and spectroscopy has strongly increased. These data demonstrate a short interpigment distance (of the order of 1 nm or even smaller) and/or a highly symmetric (ring-like) arrangement of pigment molecules in peripheral light-harvesting complexes of photosynthetic bacteria. Books which were devoted to the exciton problem so far mainly considered the spectral properties of molecular crystals. However, the small size of these pigment aggregates in the pigment-protein complexes as well as the role of the protein, which is responsible for the structural arrangement of the complex, clearly will have a dramatic influence on the pigment spectra and exciton dynamics. All these aspects of the problem are considered in this book. Exciton theory is mainly considered for small molecular aggregates (dimers, ring-like structures etc.). Together with the theoretical description of the classical conceptual approach, which mainly deals with polarization properties of the absorption and fluorescence spectra, the nonlinear femtosecond spectroscopy which is widely used for investigations now is also discussed. A large part of the book demonstrates the excitonic effects in a multitude of photosynthetic pigment-protein complexes and how we can understand these properties on the basis of the exciton concept.

Investigations of Photosynthetic Light Harvesting by Two-dimensional Electronic Spectroscopy

Author : Elizabeth Louise Read
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (34 download)

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Book Synopsis Investigations of Photosynthetic Light Harvesting by Two-dimensional Electronic Spectroscopy by : Elizabeth Louise Read

Download or read book Investigations of Photosynthetic Light Harvesting by Two-dimensional Electronic Spectroscopy written by Elizabeth Louise Read and published by . This book was released on 2008 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quantum Effects in Biology

Author : Masoud Mohseni
Publisher : Cambridge University Press
ISBN 13 : 1107010802
Total Pages : 421 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Quantum Effects in Biology by : Masoud Mohseni

Download or read book Quantum Effects in Biology written by Masoud Mohseni and published by Cambridge University Press. This book was released on 2014-08-07 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the role of quantum mechanics in biology for advanced undergraduate and graduate students in physics, biology and chemistry.

Quantum Optical Signatures of Coherent Vibronic Dynamics in Bio-inspired Light Harvesting Systems

Author : Valentina Notararigo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (119 download)

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Book Synopsis Quantum Optical Signatures of Coherent Vibronic Dynamics in Bio-inspired Light Harvesting Systems by : Valentina Notararigo

Download or read book Quantum Optical Signatures of Coherent Vibronic Dynamics in Bio-inspired Light Harvesting Systems written by Valentina Notararigo and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quantum Coherence and Energy Landscapes in Photosynthetic Systems Investigated with Two-Dimensional Electronic Spectroscopy

Author : Tessa Rae Calhoun
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (839 download)

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Book Synopsis Quantum Coherence and Energy Landscapes in Photosynthetic Systems Investigated with Two-Dimensional Electronic Spectroscopy by : Tessa Rae Calhoun

Download or read book Quantum Coherence and Energy Landscapes in Photosynthetic Systems Investigated with Two-Dimensional Electronic Spectroscopy written by Tessa Rae Calhoun and published by . This book was released on 2010 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional (2D) electronic spectroscopy has recently emerged as a powerful technique for the study of complex photodynamics in a variety of condensed phase systems. The application of this technique to both photosynthetic pigment-protein complexes and chromophore solutions has provided insight into their intricate excitation energy transfer mechanisms and landscapes. Analysis of beating peak amplitudes in 2D spectra of the Fenna-Matthews-Olson bacteriochlorophyll complex combined with changing lineshapes has revealed signals consistent with excitonic coherence. In addition, the long lifetime of the coherence indicates a reversible, wavelike motion of energy through the complex as opposed to the classical hopping picture. This quantum-mechanical behavior may explain the near unity quantum efficiency of excitation energy transfer observed in networks of photosynthetic complexes. The inclusion of a noncollinear optical parametric amplifier producing broad bandwidth pulses enables the exploration of excitonic coherence in Light Harvesting Complex II, the most abundant antenna complex in higher plants. Long-lived quantum coherence is again observed suggesting this to be a universal phenomenon in natural photosynthetic systems. To expand upon these findings, a coherence power spectrum is produced. This novel technique allows the first direct experimental determination of the excitonic energy levels. In another set of experiments, the building an adaptive, pulse-shaping apparatus allows optimal compression of the broad bandwidth pulses for use in probing the debated electronic structure of [beta]-carotene. Oscillating lineshapes reveal coupling of electronic states to high energy vibrational modes while the short pulses allow the initial dynamics of this system to be studied in unprecedented detail revealing several new features whose origins are still under investigation.

The Reaction Center of Photosynthetic Bacteria

Author : Maria-Elisabeth Michel-Beyerle
Publisher : Springer Science & Business Media
ISBN 13 : 3642611575
Total Pages : 418 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis The Reaction Center of Photosynthetic Bacteria by : Maria-Elisabeth Michel-Beyerle

Download or read book The Reaction Center of Photosynthetic Bacteria written by Maria-Elisabeth Michel-Beyerle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of this third Feldafing Meeting can be considered as the harvest of novel techniques in spectroscopy, biochemistry and molecular biology to the bacterial photosynthetic reaction center. New information pertains to the crystallographic and electronic structure as well as to the dynamics of primary events and the role of the protein. The answer to one long-standing problem, the mechanism of primary charge separation, converges towards a sequential scheme, supported by femtosecond spectroscopy on reaction centers with selectively modified energetics.

Optics in Our Time

Author : Mohammad D. Al-Amri
Publisher : Springer
ISBN 13 : 3319319035
Total Pages : 509 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Optics in Our Time by : Mohammad D. Al-Amri

Download or read book Optics in Our Time written by Mohammad D. Al-Amri and published by Springer. This book was released on 2016-12-12 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light and light based technologies have played an important role in transforming our lives via scientific contributions spanned over thousands of years. In this book we present a vast collection of articles on various aspects of light and its applications in the contemporary world at a popular or semi-popular level. These articles are written by the world authorities in their respective fields. This is therefore a rare volume where the world experts have come together to present the developments in this most important field of science in an almost pedagogical manner. This volume covers five aspects related to light. The first presents two articles, one on the history of the nature of light, and the other on the scientific achievements of Ibn-Haitham (Alhazen), who is broadly considered the father of modern optics. These are then followed by an article on ultrafast phenomena and the invisible world. The third part includes papers on specific sources of light, the discoveries of which have revolutionized optical technologies in our lifetime. They discuss the nature and the characteristics of lasers, Solid-state lighting based on the Light Emitting Diode (LED) technology, and finally modern electron optics and its relationship to the Muslim golden age in science. The book’s fourth part discusses various applications of optics and light in today's world, including biophotonics, art, optical communication, nanotechnology, the eye as an optical instrument, remote sensing, and optics in medicine. In turn, the last part focuses on quantum optics, a modern field that grew out of the interaction of light and matter. Topics addressed include atom optics, slow, stored and stationary light, optical tests of the foundation of physics, quantum mechanical properties of light fields carrying orbital angular momentum, quantum communication, and Wave-Particle dualism in action.

Photon Echo Studies on Coherence Dynamics in the Photosynthetic Bacterial Reaction Center

Author : Seungwan Ryu
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (858 download)

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Book Synopsis Photon Echo Studies on Coherence Dynamics in the Photosynthetic Bacterial Reaction Center by : Seungwan Ryu

Download or read book Photon Echo Studies on Coherence Dynamics in the Photosynthetic Bacterial Reaction Center written by Seungwan Ryu and published by . This book was released on 2013 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photosynthetic light harvesting begins with collecting ambient photons via excitation of pigment molecules. The sophisticated design of the pigment-protein complexes is based on the cooperative network among structural motifs of pigment molecules and amino acid residues in proteins to achieve the remarkable efficiency and speed in light harvesting. The insight from nature's photosynthetic nano-machinery can be translated to an optimal material design. The principle behind such inherent excitation energy transfer dynamics were revealed with the advance of the femtosecond laser technique. One of the examples is the quantum mechanical coherence excitation energy transfer observed by nonlinear photon echo technique. This dissertation presents the investigation of the bacterial reaction center complexes using electronic coherence photon echo spectroscopy. The study focused on elucidating the origin of the coherence signals and identifying quantum mechanical components relevant to the excitation energy transfer. Experimental variables affecting the coherence signals were explored for the excitation energy transfer of photosynthetic bacterial reaction center. The result showed that the vibrational coherence mimics the behavior of the electronic coherence, and the lifetime is near 2 ps. A mutant bacterial reaction center was also examined to confirm the vibrational contribution. A new polarization control experiment indicates that majority of the observed vibrational coherence is from the electronic ground state.

Light Harvesting in Photosynthesis

Author : Roberta Croce
Publisher : CRC Press
ISBN 13 : 1351242881
Total Pages : 611 pages
Book Rating : 4.3/5 (512 download)

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Book Synopsis Light Harvesting in Photosynthesis by : Roberta Croce

Download or read book Light Harvesting in Photosynthesis written by Roberta Croce and published by CRC Press. This book was released on 2018-01-12 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: This landmark collective work introduces the physical, chemical, and biological principles underlying photosynthesis: light absorption, excitation energy transfer, and charge separation. It begins with an introduction to properties of various pigments, and the pigment proteins in plant, algae, and bacterial systems. It addresses the underlying physics of light harvesting and key spectroscopic methods, including data analysis. It discusses assembly of the natural system, its energy transfer properties, and regulatory mechanisms. It also addresses light-harvesting in artificial systems and the impact of photosynthesis on our environment. The chapter authors are amongst the field’s world recognized experts. Chapters are divided into five main parts, the first focused on pigments, their properties and biosynthesis, and the second section looking at photosynthetic proteins, including light harvesting in higher plants, algae, cyanobacteria, and green bacteria. The third part turns to energy transfer and electron transport, discussing modeling approaches, quantum aspects, photoinduced electron transfer, and redox potential modulation, followed by a section on experimental spectroscopy in light harvesting research. The concluding final section includes chapters on artificial photosynthesis, with topics such as use of cyanobacteria and algae for sustainable energy production. Robert Croce is Head of the Biophysics Group and full professor in biophysics of photosynthesis/energy at Vrije Universiteit, Amsterdam. Rienk van Grondelle is full professor at Vrije Universiteit, Amsterdam. Herbert van Amerongen is full professor of biophysics in the Department of Agrotechnology and Food Sciences at Wageningen University, where he is also director of the MicroSpectroscopy Research Facility. Ivo van Stokkum is associate professor in the Department of Physics and Astronomy, Faculty of Sciences, at Vrije Universiteit, Amsterdam.

Quantum Chemistry and Dynamics of Excited States

Author : Leticia González
Publisher : John Wiley & Sons
ISBN 13 : 1119417759
Total Pages : 52 pages
Book Rating : 4.1/5 (194 download)

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Book Synopsis Quantum Chemistry and Dynamics of Excited States by : Leticia González

Download or read book Quantum Chemistry and Dynamics of Excited States written by Leticia González and published by John Wiley & Sons. This book was released on 2021-02-01 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the rapidly evolving methodology of electronic excited states For academic researchers, postdocs, graduate and undergraduate students, Quantum Chemistry and Dynamics of Excited States: Methods and Applications reports the most updated and accurate theoretical techniques to treat electronic excited states. From methods to deal with stationary calculations through time-dependent simulations of molecular systems, this book serves as a guide for beginners in the field and knowledge seekers alike. Taking into account the most recent theory developments and representative applications, it also covers the often-overlooked gap between theoretical and computational chemistry. An excellent reference for both researchers and students, Excited States provides essential knowledge on quantum chemistry, an in-depth overview of the latest developments, and theoretical techniques around the properties and nonadiabatic dynamics of chemical systems. Readers will learn: ● Essential theoretical techniques to describe the properties and dynamics of chemical systems ● Electronic Structure methods for stationary calculations ● Methods for electronic excited states from both a quantum chemical and time-dependent point of view ● A breakdown of the most recent developments in the past 30 years For those searching for a better understanding of excited states as they relate to chemistry, biochemistry, industrial chemistry, and beyond, Quantum Chemistry and Dynamics of Excited States provides a solid education in the necessary foundations and important theories of excited states in photochemistry and ultrafast phenomena.

Statistical Benchmarks for Quantum Transport in Complex Systems

Author : Mattia Walschaers
Publisher : Springer
ISBN 13 : 3319931512
Total Pages : 457 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Statistical Benchmarks for Quantum Transport in Complex Systems by : Mattia Walschaers

Download or read book Statistical Benchmarks for Quantum Transport in Complex Systems written by Mattia Walschaers and published by Springer. This book was released on 2018-07-31 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces a variety of statistical tools for characterising and designing the dynamical features of complex quantum systems. These tools are applied in the contexts of energy transfer in photosynthesis, and boson sampling. In dynamical quantum systems, complexity typically manifests itself via the interference of a rapidly growing number of paths that connect the initial and final states. The book presents the language of graphs and networks, providing a useful framework to discuss such scenarios and explore the rich phenomenology of transport phenomena. As the complexity increases, deterministic approaches rapidly become intractable, which leaves statistics as a viable alternative.

Quantum Effects in Biology

Author : Masoud Mohseni
Publisher : Cambridge University Press
ISBN 13 : 1139952218
Total Pages : 421 pages
Book Rating : 4.1/5 (399 download)

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Book Synopsis Quantum Effects in Biology by : Masoud Mohseni

Download or read book Quantum Effects in Biology written by Masoud Mohseni and published by Cambridge University Press. This book was released on 2014-08-07 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum mechanics provides the most accurate microscopic description of the world around us, yet the interface between quantum mechanics and biology is only now being explored. This book uses a combination of experiment and theory to examine areas of biology believed to be strongly influenced by manifestly quantum phenomena. Covering subjects ranging from coherent energy transfer in photosynthetic light harvesting to spin coherence in the avian compass and the problem of molecular recognition in olfaction, the book is ideal for advanced undergraduate and graduate students in physics, biology and chemistry seeking to understand the applications of quantum mechanics to biology.

Light-Harvesting Antennas in Photosynthesis

Author : B.R. Green
Publisher : Springer Science & Business Media
ISBN 13 : 9401720878
Total Pages : 533 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Light-Harvesting Antennas in Photosynthesis by : B.R. Green

Download or read book Light-Harvesting Antennas in Photosynthesis written by B.R. Green and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light-Harvesting Antennas in Photosynthesis is concerned with the most important process on earth - the harvesting of light energy by photosynthetic organisms. This book provides a comprehensive treatment of all aspects of photosynthetic light-harvesting antennas, from the biophysical mechanisms of light absorption and energy transfer to the structure, biosynthesis and regulation of antenna systems in whole organisms. It sets the great variety of antenna pigment-protein complexes in their evolutionary context and at the same time brings in the latest hi-tech developments. The book is unique in the degree to which it emphasizes the integration of molecular biological, biochemical and biophysical approaches. Overall, a well-organized, understandable, and comprehensive volume. It will be a valuable resource for both graduate students and their professors, and a helpful library reference book for undergraduates.

Metabolism and Medicine

Author : Brian Fertig
Publisher : CRC Press
ISBN 13 : 1000472132
Total Pages : 369 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Metabolism and Medicine by : Brian Fertig

Download or read book Metabolism and Medicine written by Brian Fertig and published by CRC Press. This book was released on 2022-01-25 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronic disease states of aging should be viewed through the prism of metabolism and biophysical processes at all levels of physiological organization present in the human body. This book describes the building blocks of understanding from a reasonable but not high-level technical language viewpoint, employing the perspective of a clinical physician. It brings together concepts from five specific branches of physics relevant to biology and medicine, namely, biophysics, classical electromagnetism, thermodynamics, systems biology and quantum mechanics. Key Features: Broad and up-to-date overview of the field of metabolism, especially connecting the spectrum of topics that range from modern physical underpinnings with cell biology to clinical practice. Provides a deeper basic science and interdisciplinary understanding of biological systems that broaden the perspectives and therapeutic problem solving. Introduces the concept of the Physiological Fitness Landscape, which is inspired by the physics of phase transitions This first volume in a two-volume set, primarily targets an audience of clinical and science students, biomedical researchers and physicians who would benefit from understanding each other’s language.