Journal ArticleDOI
The role of non-equilibrium vibrational structures in electronic coherence and recoherence in pigment-protein complexes
Alex W. Chin,Alex W. Chin,Javier Prior,R. Rosenbach,Felipe Caycedo-Soler,Susana F. Huelga,Martin B. Plenio +6 more
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In this article, the microscopic mechanism that drives the coherent behavior of photosynthesis is uncovered. But it is not yet known how to detect the interactions between the excitons and the vibrational modes of the pigment-protein complex.Abstract:
Photosynthesis is remarkably efficient. The transport of optically generated excitons from absorbing pigments, through protein complexes, to reaction centres is nearly perfect. Simulations now uncover the microscopic mechanism that drives this coherent behaviour: interactions between the excitons and the vibrational modes of the pigment-protein complex.read more
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Using coherence to enhance function in chemical and biophysical systems
Gregory D. Scholes,Graham R. Fleming,Lin X. Chen,Lin X. Chen,Alán Aspuru-Guzik,Andreas Buchleitner,David F. Coker,Gregory S. Engel,Rienk van Grondelle,Akihito Ishizaki,David M. Jonas,Jeff S. Lundeen,James K. McCusker,Shaul Mukamel,Jennifer P. Ogilvie,Alexandra Olaya-Castro,Mark A. Ratner,Frank C. Spano,K. Birgitta Whaley,K. Birgitta Whaley,Xiaoyang Zhu +20 more
TL;DR: The state of recent discoveries is surveyed, viewpoints that suggest that coherence can be used in complex chemical systems are presented, and the role of coherence as a design element in realizing function is discussed.
Journal ArticleDOI
Quantum coherence in photosynthesis for efficient solar-energy conversion
Elisabet Romero,Ramunas Augulis,Vladimir I. Novoderezhkin,Marco Ferretti,Jos Thieme,Jos Thieme,Donatas Zigmantas,Rienk van Grondelle +7 more
TL;DR: The role of coherence in determining the efficiency of charge separation in the plant photosystem II reaction centre is elucidated by comprehensively combining experiment (two-dimensional electronic spectroscopy) and theory (Redfield theory) and it is proposed that this coherent mechanism will inspire the development of new energy technologies.
Journal ArticleDOI
Vibrations, quanta and biology
TL;DR: In this paper, the dynamics of quantum dynamical networks in the presence of an environment and the fruitful interplay that the two may enter are discussed, and three biological phenomena whose understanding is held to require quantum mechanical processes, namely excitation and charge transfer in photosynthetic complexes, magneto-reception in birds and the olfactory sense, are discussed.
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Vibrations, Quanta and Biology
TL;DR: This tutorial overview aims to bring out fundamental assumptions and questions in the field, identify basic design principles and develop a key underlying theme – the dynamics of quantum dynamical networks in the presence of an environment and the fruitful interplay that the two may enter.
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Consciousness In The Universe
Stuart R. Hameroff,Roger Penrose +1 more
TL;DR: The proposed Orch OR suggests that there is a connection between the brain's biomolecular processes and the basic structure of the universe, and it is concluded that consciousness plays an intrinsic role in the universe.
References
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Journal ArticleDOI
Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems
Gregory S. Engel,Gregory S. Engel,Tessa R. Calhoun,Tessa R. Calhoun,Elizabeth L. Read,Elizabeth L. Read,Tae Kyu Ahn,Tae Kyu Ahn,Tomáš Mančal,Tomáš Mančal,Tomáš Mančal,Yuan-Chung Cheng,Yuan-Chung Cheng,Robert E. Blankenship,Graham R. Fleming,Graham R. Fleming +15 more
TL;DR: Previous two-dimensional electronic spectroscopy investigations of the FMO bacteriochlorophyll complex are extended, and direct evidence is obtained for remarkably long-lived electronic quantum coherence playing an important part in energy transfer processes within this system is obtained.
Book
Molecular mechanisms of photosynthesis
TL;DR: This chapter discusses the organization and structure of Photosynthetic Systems, as well as the history and development of Photosynthesis, and the origins and evolution of photosynthesis.
Journal ArticleDOI
Coherently wired light-harvesting in photosynthetic marine algae at ambient temperature
Elisabetta Collini,Cathy Y. Wong,Krystyna E. Wilk,Paul M. G. Curmi,Paul Brumer,Gregory D. Scholes +5 more
TL;DR: Observations provide compelling evidence for quantum-coherent sharing of electronic excitation across the 5-nm-wide proteins under biologically relevant conditions, suggesting that distant molecules within the photosynthetic proteins are ‘wired’ together by quantum coherence for more efficient light-harvesting in cryptophyte marine algae.
Journal ArticleDOI
Lessons from nature about solar light harvesting
Gregory D. Scholes,Graham R. Fleming,Graham R. Fleming,Alexandra Olaya-Castro,Rienk van Grondelle +4 more
TL;DR: The principles learned from studies of various natural antenna complexes are described and how to elucidate strategies for designing light-harvesting systems are suggested to be used for solar fuel production, to direct and regulate excitation energy flow using molecular organizations that facilitate feedback and control, or to transfer excitons over long distances.
Journal ArticleDOI
Environment-assisted quantum walks in photosynthetic energy transfer.
TL;DR: A theoretical framework for studying the role of quantum interference effects in energy transfer dynamics of molecular arrays interacting with a thermal bath within the Lindblad formalism is developed and an effective interplay between the free Hamiltonian evolution and the thermal fluctuations in the environment is demonstrated.