Detecting a pronounced delocalized state in third-harmonic generation phenomenon; a quantum chaos approach

Behnia, S.; Ziaei, J.; Khodavirdizadeh, M.

doi:10.1016/j.optcom.2018.02.004

Cited by 4 publications

(3 citation statements)

References 81 publications

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“…Quantum chaos theory can be used to obtain a detailed understanding of a dynamic phase transition in nanoscales [41,42]. Using the performance of random matrix theory, quantum chaos theory could recognize the delocalized states (chaotic) from localized states (Poisson) [43,44].…”

Section: Methodsmentioning

confidence: 99%

Molecular spin switch triggered by voltage and magnetic field: towards DNA-based molecular devices

Salimi¹,

Fathizadeh²,

Behnia³

2022

Phys. Scr.

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Spin state switching of the DNA sequences due to external stimuli is investigated theoretically. A molecular-based memory or logic device such as a spin switch could be directly realized within an electronic circuit. The DNA system is subjected an electrical potential diﬀerence through the metal leads for controling the spin transport. The spectral analysis of spin states demonstrates that voltage operates as a crucial tool to turns the switch on. The width of functional voltage range changes when the system is subjected to an external magnetic ﬁeld. The magnetic ﬁeld reduces the system symmetry and drives the system to the extended state. Hence, the voltage and magnetic ﬁeld can modulate the spin transport properties of DNA. The ability to control the spin localization/delocalization states in DNA chains opens up a new approach for eﬃcient computation and data storage.

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Section: Methodsmentioning

confidence: 99%

Molecular spin switch triggered by voltage and magnetic field: towards DNA-based molecular devices

Salimi¹,

Fathizadeh²,

Behnia³

2022

Phys. Scr.

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“…We aim to study the dynamical features of the photosynthetic system by using the quantum chaos approach. Quantum chaos theory enables to determine the stability conditions and transport properties of system [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Quantum chaos approach in exciton energy transfer in a photosynthetic system

Hosseinnezhad¹,

Behnia²,

Fathizadeh³

2020

Phys. Scr.

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Photosynthesis is the most important photon-induced process to fuel the activities of the organism. In the current work, we have investigated the exciton energy transfer in a photosynthetic complex connected to a thermal bath using the quantum chaos approach. The statistical distribution of the energy levels of the system investigates a quasi-degeneracy level distribution and, therefore, a stable system. The system is sensitive to the environmental effects, and the Hamiltonian parameters. Among the practical factors, we have studied the effect of temperature and solvent on the chlorosome system. At low temperatures, the Izrailev distribution is quasi-Poisson and the general behavior of the system approaches to a nearly localized state. Gradually, with increasing temperature, it corresponds to the Poisson state and shows an improvement in exciton transmission. In the presence of a solvent, at low solvent frequency, via the increasing the temperature, the system changes its behavior from the localized state to the transition state. But, by increasing the frequency, the system presents the opposite behavior: with increasing the temperature, the system becomes more localized. Accordingly, the most appropriate conditions for exciton energy transfer in the chlorosome system are low-frequency solvent and high-temperature. To compare the temperature effect on different parts of the photosynthetic system, we have studied the temperature effect on the FMO complex conductivity, which shows the increase in conductivity and exciton energy transfer with increasing the temperature. Modulation of transport properties in the system provides the potential application in the nanoscale biomaterial devices.

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“…Studies on chaos theory introduced numerous systems [1][2][3], interesting properties [4][5][6]. Chaos theory has several applications like robotics [7], communications [8,9], oscillators [10][11][12], memristors [13,14], biology [15,16], chemical reactors [17], finance [18], circuits [19], etc.…”

Section: Introductionmentioning

confidence: 99%

Archives of Control Sciences

Pham

Vaidyanathan

Volos

et al. 2020

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Researchers have paid significant attention on hyperjerk systems, especial hyperjerk ones with chaos. A new hyperjerk system with seven terms and two parameters is analyzed. Chaotic attractors as well as coexisting attractors are displayed by the hyperjerk system. Thus it is a new multi-stable chaotic hyperjerk system. Further properties of the proposed hyperjerk system such as circuit design and backstepping-based control and synchronization are reported.

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Detecting a pronounced delocalized state in third-harmonic generation phenomenon; a quantum chaos approach

Cited by 4 publications

References 81 publications

Molecular spin switch triggered by voltage and magnetic field: towards DNA-based molecular devices

Molecular spin switch triggered by voltage and magnetic field: towards DNA-based molecular devices

Quantum chaos approach in exciton energy transfer in a photosynthetic system

Archives of Control Sciences

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