Artificial light harvesting by dimerized Möbius ring

Xu, Lei; Gong, Zongping; Tao, Ming‐Jie; Ai, Qing

doi:10.1103/physreve.97.042124

Cited by 17 publications

(18 citation statements)

References 52 publications

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“…and ∆ kk ′ σ is the transition frequency between the final state k ′ σ and the initial state |kσ〉 within the same band σ, η ′ kk ′ σ is the real part of η kk ′ σ . Equation (35) indicates that if two transitions share the same transition frequency ∆ kk ′ σ , they would also possess the same η kk ′ σ . Since there are three pairs of transitions which possess the same transition frequency, we can obtain three equations…”

Section: Without Local Field Correctionmentioning

confidence: 99%

“…Möbius molecules owns novel topological structures in which one can move from one side to the other side without crossing the border [25,26]. Previously, Möbius molecules have been suggested for metamaterials [6,27,28], quantum devices [29][30][31], dualmode resonators and bandpass filters [32], topological insulators [33], molecular knots and engines [34], and artificial light harvesting [35,36]. However, because it is double-negative metamaterial, the bandwidth of negative refraction in Möbius molecules is so small, e.g., 4 ∼ 80 µeV [6,12], that it might be difficult to observe.…”

Section: Introductionmentioning

confidence: 99%

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Hyperbolic metamaterial using chiral molecules

Zhao

Cheng

Chu

et al. 2020

Sci. China Phys. Mech. Astron.

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We theoretically investigate the intra-band transitions in Möbius molecules. Due to the weak magnetic response, the relative permittivity is significantly modified by the presence of the medium while the relative permeability is not.We show that there is hyperbolic dispersion relation induced by the intra-band transitions because one of the eigen-values of permittivity possesses a different sign from the other two, while all three eigen-values of permeability are positive. We further demonstrate that the bandwidth of negative refraction is 0.1952 eV for the H -polarized incident light, which is broader than the ones for inter-band transitions by 3 orders of magnitude. Moreover, the frequency domain has been shifted from ultra-violet to visible domain. Although there is negative refraction for the Epolarized incident light, the bandwidth is much narrower and depends on the incident angle.

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Section: Without Local Field Correctionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hyperbolic metamaterial using chiral molecules

Zhao

Cheng

Chu

et al. 2020

Sci. China Phys. Mech. Astron.

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“…The increased understanding of the molecular structure of photosynthesis is the result of the hard work of scientists for generations, which is necessary for the study of the physical mechanism of energy transfer in photosynthesis. And thus it is helpful to the development of artificial light-harvesting devices 21 .…”

Section: Introductionmentioning

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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“…[6][7][8][9][10][11] Based on the quantum dynamics of open systems, 2,12 much knowledge has been learned about the efficiency of the EET, [13][14][15][16][17] together with the spatial and energetic arrangement of the pigments. [18][19][20][21][22] The experimentally observed coherent phenomena in 2D spectroscopy may be attributed to nearly resonant coupling to an underdampped vibrational mode in the bath. 12,23 In natural photosynthesis, EET can be accomplished within 100 picoseconds with almost 100% efficiency.…”

Section: Introductionmentioning

confidence: 99%

Quantum simulation of clustered photosynthetic light harvesting in a superconducting quantum circuit

Tao

Hua

Zhang

et al. 2020

Quantum Engineering

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Summary We propose a method to emulate the exciton energy transfer (EET) of photosynthetic complexes in a quantum superconducting circuit. Our system is composed of two pairs of superconducting charge qubits coupled to two separated high‐Q superconducting transmission line resonators (TLRs), respectively. The two TLRs interact with each other capacitively. When the frequencies of the qubits are largely detuned from those of the TLRs, we simulate the process of EET from the first qubit to the fourth qubit. By tuning the couplings between the qubits and the TLRs, as well as the coupling between the two TLRs, we can modify the effective coupling strengths between the qubits and thus study the geometric effects on the EET. It is shown that a moderately clustered geometry supports optimal EET by using exciton delocalization and an energy matching condition. And the population loss during the EET has been trapped in the two TLRs.

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Artificial light harvesting by dimerized Möbius ring

Cited by 17 publications

References 52 publications

Hyperbolic metamaterial using chiral molecules

Hyperbolic metamaterial using chiral molecules

Coherent and incoherent theories for photosynthetic energy transfer

Quantum simulation of clustered photosynthetic light harvesting in a superconducting quantum circuit

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