Clustered Geometries Exploiting Quantum Coherence Effects for Efficient Energy Transfer in Light Harvesting

Ai, Qing; Yen, Tzu-Chi; Jin, Bih‐Yaw; Cheng, Yuan‐Chung

doi:10.1021/jz4011477

Cited by 45 publications

(72 citation statements)

References 57 publications

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“…22,23 In this paper, NMR is utilized to simulate the quantum coherent dynamics in photosynthetic light harvesting. As a prototype, a tetramer including four chlorophylls, 13 as schematically illustrated in Fig. 1a, is employed in the NMR quantum simulation.…”

Section: Resultsmentioning

confidence: 99%

“…Because photosynthetic pigment-protein complexes are intrinsically open quantum systems, with system-bath couplings comparable to the intrasystem couplings, it is difficult to faithfully mimic the exact quantum dynamics of EET. Among the methods for describing EET, 1,[11][12][13] the hierarchical equation of motion (HEOM) yields a numerically exact solution at the cost of considerable computing time. 11,14 For the widely-studied Fenna-Matthews-Olson (FMO) complex, 5,6,11,13,15,16 a reliable result could be produced by 16,170 coupled differential equations at low temperatures, based on the HEOM 11,14 with 4 layers.…”

Section: Introductionmentioning

confidence: 99%

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Efficient quantum simulation of photosynthetic light harvesting

Wang¹,

Tao²,

Ai³

et al. 2018

npj Quantum Inf

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114

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Near-unity energy transfer efficiency has been widely observed in natural photosynthetic complexes. This phenomenon has attracted broad interest from different fields, such as physics, biology, chemistry, and material science, as it may offer valuable insights into efficient solar-energy harvesting. Recently, quantum coherent effects have been discovered in photosynthetic light harvesting, and their potential role on energy transfer has seen the heated debate. Here, we perform an experimental quantum simulation of photosynthetic energy transfer using nuclear magnetic resonance (NMR). We show that an N-chromophore photosynthetic complex, with arbitrary structure and bath spectral density, can be effectively simulated by a system with log 2 N qubits. The computational cost of simulating such a system with a theoretical tool, like the hierarchical equation of motion, which is exponential in N, can be potentially reduced to requiring a just polynomial number of qubits N using NMR quantum simulation. The benefits of performing such quantum simulation in NMR are even greater when the spectral density is complex, as in natural photosynthetic complexes. These findings may shed light on quantum coherence in energy transfer and help to provide design principles for efficient artificial light harvesting.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient quantum simulation of photosynthetic light harvesting

Wang¹,

Tao²,

Ai³

et al. 2018

npj Quantum Inf

Self Cite

114

View full text Add to dashboard Cite

show abstract

“…(1) cannot faithfully be employed to model population dynamics. Because the original Förster theory treats the intra-system couplings perturbatively, the theory should be generalized to describe the EET in a multichromophoric system when there are some clusters 48,49 .…”

Section: B Generalized Förster Theorymentioning

confidence: 99%

Coherent and incoherent theories for photosynthetic energy transfer

et al. 2020

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There is a remarkable characteristic of photosynthesis in nature, that is, the energy transfer efficiency is close to 100%. Recently, due to the rapid progress made in the experimental techniques, quantum coherent effects have been experimentally demonstrated. Traditionally, the incoherent theories are capable of calculating the energy transfer efficiency, e.g., (generalized) Förster theory and modified Redfield theory. However, in order to describe the quantum coherent effects in photosynthesis, the coherent theories have been developed, such as hierarchical equation of motion, quantum path integral, coherent modified Redfield theory, small-polaron quantum master equation, and general Bloch-Redfield theory in addition to the Redfield theory. Here, we summarize the main points of the above approaches, which might be beneficial to the quantum simulation of quantum dynamics of exciton energy transfer in natural photosynthesis, and shed light on the design of artificial light-harvesting devices.

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“…It was found that by combining the coherence of excitation transport and the thermal noise, the excitation may easily escape a local potential minima of the FMO and move to the reaction center. There were also works on studying the effects of the molecular geometric structure on the efficiency of energy transport [56]. Ref.…”

Section: Photosynthesismentioning

confidence: 99%

Bringing quantum mechanics to life: from Schrödinger’s cat to Schrödinger’s microbe

Yin

2017

Contemporary Physics

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The question whether quantum mechanics is complete and the nature of the transition between quantum mechanics and classical mechanics have intrigued physicists for decades. There have been many experimental breakthroughs in creating larger and larger quantum superposition and entangled states since Erwin Schrödinger proposed his famous thought experiment of putting a cat in a superposition of both alive and dead states in 1935. Remarkably, recent developments in quantum optomechanics and electromechanics may lead to the realization of quantum superposition of living microbes soon. Recent evidence also suggests that quantum coherence may play an important role in several biological processes. In this review, we first give a brief introduction to basic concepts in quantum mechanics and the Schrödinger's cat thought experiment. We then review developments in creating quantum superposition and entangled states and the realization of quantum teleportation. Non-trivial quantum effects in photosynthetic light harvesting and avian magnetoreception are also discussed. At last, we review recent proposals to realize quantum superposition, entanglement and state teleportation of microorganisms, such as viruses and bacteria.

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Clustered Geometries Exploiting Quantum Coherence Effects for Efficient Energy Transfer in Light Harvesting

Cited by 45 publications

References 57 publications

Efficient quantum simulation of photosynthetic light harvesting

Efficient quantum simulation of photosynthetic light harvesting

Coherent and incoherent theories for photosynthetic energy transfer

Bringing quantum mechanics to life: from Schrödinger’s cat to Schrödinger’s microbe

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