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Light harvesting components of photosynthetic organisms are complex, coupled, many-body quantum systems, in which electronic coherence has recently been shown to survive for relatively long time scales despite the decohering effects of…

Quantum Physics · Physics 2015-05-13 Mohan Sarovar , Akihito Ishizaki , Graham R. Fleming , K. Birgitta Whaley

We review recent theoretical calculations of quantum entanglement in photosynthetic light harvesting complexes. These works establish, for the first time, a manifestation of this characteristically quantum mechanical phenomenon in…

Quantum Physics · Physics 2010-12-21 K. Birgitta Whaley , Mohan Sarovar , Akihito Ishizaki

We study the evolution of quantum entanglement during exciton energy transfer (EET) in a network model of the Fenna-Matthews-Olson (FMO) complex, a biological pigment-protein complex involved in the early steps of photosynthesis in sulphur…

Quantum Physics · Physics 2010-06-29 Filippo Caruso , Alex W. Chin , Animesh Datta , Susana F. Huelga , Martin B. Plenio

It has been suggested that excitation transport in photosynthetic light harvesting complexes features speedups analogous to those found in quantum algorithms. Here we compare the dynamics in these light harvesting systems to the dynamics of…

Quantum Physics · Physics 2010-07-09 Stephan Hoyer , Mohan Sarovar , K. Birgitta Whaley

Elucidating quantum coherence effects and geometrical factors for efficient energy transfer in photosynthesis has the potential to uncover non-classical design principles for advanced organic materials. We study energy transfer in a linear…

Biological Physics · Physics 2013-07-30 Qing Ai , Tzu-Chi Yen , Bih-Yaw Jin , Yuan-Chung Cheng

A remarkable amount of theoretical research has been carried out to elucidate the physical origins of the recently observed long-lived quantum coherence in the electronic energy transfer process in biological photosynthetic systems.…

Quantum Physics · Physics 2015-03-19 Sangwoo Shim , Patrick Rebentrost , Stéphanie Valleau , Alan Aspuru-Guzik

For more than 50 years we have known that photosynthetic systems harvest solar energy with almost unit {\it quantum efficiency}. However, recent experimental evidence of {\it quantum coherence} during the excitonic energy transport in…

Biological Physics · Physics 2012-05-25 Tobias Zech , Roberto Mulet , Thomas Wellens , Andreas Buchleitner

The fundamental physical mechanisms of energy transfer in photosynthetic complexes is not yet fully understood. In particular, the degree of efficiency or sensitivity of these systems for energy transfer is not known given their…

Quantum Physics · Physics 2013-05-30 Alireza Shabani , Masoud Mohseni , Herschel Rabitz , Seth Lloyd

We investigate the role of quantum coherence in the efficiency of excitation transfer in a ring-hub arrangement of interacting two-level systems, mimicking a light-harvesting antenna connected to a reaction center as it is found in natural…

Quantum Physics · Physics 2009-11-13 Alexandra Olaya-Castro , Chiu Fan Lee , Francesca Fassioli Olsen , Neil F. Johnson

In this Article we perform a systematic study of the global entanglement and exciton coherence length dynamics coherence in natural light-harvesting system Fenna-Matthews-Olson (FMO) complex across various parameters of a dissipative…

Quantum Physics · Physics 2024-06-18 Luis E. Herrera Rodríguez , Alexei A. Kananenka

The Fenna-Matthews-Olson (FMO) complex - a pigment protein complex involved in photosynthesis in green sulfur bacteria - is remarkably efficient in transferring excitation energy from light harvesting antenna molecules to a reaction center.…

Quantum Physics · Physics 2016-10-20 Charlotta Bengtson , Michael Stenrup , Erik Sjöqvist

In natural light harvesting systems, the sequential quantum events of photon absorption by specialized biological antenna complexes, charge separation, exciton formation and energy transfer to localized reaction centers culminates in the…

Quantum Physics · Physics 2014-11-25 A. Thilagam

Photosynthetic antenna complexes capture and concentrate solar radiation by transferring the excitation to the reaction center which stores energy from the photon in chemical bonds. This process occurs with near-perfect quantum efficiency.…

Underlying physical principles for the high efficiency of excitation energy transfer in light-harvesting complexes are not fully understood. Notably, the degree of robustness of these systems for transporting energy is not known considering…

Quantum Physics · Physics 2015-03-19 Masoud Mohseni , Alireza Shabani , Seth Lloyd , Herschel Rabitz

Entanglement distribution is a critical technique that enables numerous quantum applications. Most fiber-based long-distance experiments reported to date have utilized photon pair sources generated in bulk optical crystals, with the…

Quantum Physics · Physics 2024-08-01 Yuan-yuan Zhao , Fuyong Yue , Feng Gao , Qibing Wang , Chao Li , Zichen Liu , Lei Wang , Zhixue He

There are successful applications of the holographic AdS/CFT correspondence to high energy and condensed matter physics. We apply the holographic approach to photosynthesis that is an important example of nontrivial quantum phenomena…

High Energy Physics - Theory · Physics 2016-04-12 Irina Aref'eva , Igor Volovich

We examine computational techniques and methodologies currently in use to explore electronic excitation energy transfer in the context of light-harvesting complexes in photosynthetic antenna systems, and comment on some new insights into…

Chemical Physics · Physics 2012-07-05 Leonardo A. Pachon , Paul Brumer

When shared between remote locations, entanglement opens up fundamentally new capabilities for science and technology [1, 2]. Envisioned quantum networks distribute entanglement between their remote matter-based quantum nodes, in which it…

Quantum Physics · Physics 2019-12-20 V. Krutyanskiy , M. Meraner , J. Schupp , V. Krcmarsky , H. Hainzer , B. P. Lanyon

Entangled photons play a pivotal role in the distribution of quantum information in quantum networks. However, the frequency bands for optimal transmission and storage of photons are not necessarily the same. Here we experimentally…

Quantum Physics · Physics 2012-02-07 Sven Ramelow , Alessandro Fedrizzi , Andreas Poppe , Nathan K. Langford , Anton Zeilinger

Quantum repeaters based on atomic ensemble quantum memories are promising candidates for achieving scalable distribution of entanglement over long distances. Recently, important experimental progress has been made towards their…

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