Decoherence time, hydrogenic-like impurity effect and Shannon entropy on polaron in RbCl triangular quantum dot qubit

Tiotsop, M.; Fotué, A. J.; Fautso, G.K.; Kenfack, C. S.; Fotsin, Hilaire Bertrand; Fai, Lukong Cornelius

doi:10.1016/j.spmi.2017.01.018

Cited by 11 publications

(2 citation statements)

References 35 publications

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“…57 In earlier studies involving the Shannon entropy, Fai et al have determined the Shannon entropy experimentally for polarons in quantum dots. 58,59 In one study, an external electric field was applied. 60 The Shannon entropy of the distribution over electronic states accompanying an S N 2 reaction has been modeled computationally.…”

Section: Introductionmentioning

confidence: 99%

Shannon and von Neumann entropies of multi-qubit Schrödinger's cat states

Jansen

Loucks

Gilbert

et al. 2022

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Shannon and von Neumann entropies of multi-qubit Schrödinger's cat states

Jansen

Loucks

Gilbert

et al. 2022

Phys. Chem. Chem. Phys.

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“…30 The type of confinement is therefore a determining factor in the study of decoherence in nanostructures. 31,32 One of the theoretical difficulties of the polaron excitonic model is the fact that Hamiltonian operators are not always diagonally shaped. Sometimes, it may be necessary to employ diagonalization techniques to determine the proper eigenvalues of the Hamiltonian, the eigenfunctions of the system or other parameters.…”

Section: Introductionmentioning

confidence: 99%

Dynamics and Decoherence of Exciton Polaron in Monolayer Transition Metal Dichalcogenides

Kenfack-Sadem

Teguimfouet

Kenfack-Jiotsa

et al. 2021

Journal of Elec Materi

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The dynamics and decoherence of excitonic polaron in a two-dimensional monolayer transition metal dichalcogenides (TMDCs) in quantum dot have been investigated using a variational method. We focused on confinement and temperature effects on dynamics properties and decoherence of exciton polaron, and found that the entropy increases with increasing temperature and dot radius. We observed that due to temperature the lifetime decreases and exciton or polaron can exits independently in the system. The high mobility of exciton-polaron decreases when enhancing the temperature and dot radius. We show that the optical absorption of photon starts when the photon energy is twice the phonon energy. Among the TMDCs studied, we observed the lowest entropy for WS 2 , the longest lifetime for MoSe 2 , the highest mobility for MoS 2 and the greatest absorption for MoS 2 . We have also determined the ranges of decoherence for each property, and it appears that the increase in temperature, dot radius and photon energy does not favor decoherence. It is seen that, in the decoherence phase, the system has lower disorder, higher amplitude of lifetime, mobility and absorption.

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The Effect of Temperature and Electric Field on a Quantum Pseudodot Qubit

Chen

Xiao

2017

Int J Theor Phys

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Decoherence time, hydrogenic-like impurity effect and Shannon entropy on polaron in RbCl triangular quantum dot qubit

Cited by 11 publications

References 35 publications

Shannon and von Neumann entropies of multi-qubit Schrödinger's cat states

Shannon and von Neumann entropies of multi-qubit Schrödinger's cat states

Dynamics and Decoherence of Exciton Polaron in Monolayer Transition Metal Dichalcogenides

The Effect of Temperature and Electric Field on a Quantum Pseudodot Qubit

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