Classification of Classical Non-Gaussian Noises with Respect to Their Detrimental Effects on the Evolution of Entanglement Using a System of Three-Qubit as Probe

Kenfack, Lionel Tenemeza; Tchoffo, Martin; Fai, Lukong Cornelius

doi:10.1007/s10773-019-04300-7

Cited by 2 publications

(2 citation statements)

References 37 publications

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“…[4] In the outline with several bistable oscillators, the presence of pink and brown noise leads to the phenomena of sudden death and rebirth. [46] The variations are due to the various numbers of decoherence gutters in the two outlines. By making an appropriate choice of probabilistic terms as a function of time in the Hamiltonian, we will describe the effects of both local and non-local environments on the dynamics of the system.…”

Section: Introductionmentioning

confidence: 99%

Effects of colored noise on the dynamics of quantum entanglement of a one-parameter qubit–qutrit system

Tiokang¹,

Tchangnwa²,

Tchinda³

et al. 2022

Chinese Phys. B

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We analyzed the effect of colored noise on the negativity dynamics of a hybrid system consisting of a qubit–qutrit and not interacting, prepared from the start in an entangled one-parameter state and acting with noise in local and non-local environments. In this pink and brown noise we investigated two different situations: in the first situation, the noise is produced by a bistable oscillator with an unknown exchange rate; however, in the second situation, the noise is generated by a set of bistable oscillators. We found that entanglement decreases with time to zero, and undergoes the phenomenon of sudden death and rebirth. The pink noise is more prone to entanglement than the brown noise and the non-local environment is more prone to entanglement than the local one. When the number of fluctuators is increased, entanglement decays faster and finally, for certain parameters of the initial state, the subsystems are not affected by the noise.

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Section: Introductionmentioning

confidence: 99%

Effects of colored noise on the dynamics of quantum entanglement of a one-parameter qubit–qutrit system

Tiokang¹,

Tchangnwa²,

Tchinda³

et al. 2022

Chinese Phys. B

Self Cite

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“…Therefore, it is very important to investigate how different kinds of environments affect the evolution of a quantum system to search for possible approaches to understand, control, and even protect either indefinitely or partially the quantum correlations of the emerged system. [24][25][26] Emerging from this idea, many investigations have been done recently to understand the behaviors of quantum correlations in the multipartite system interacting with environments described either classically or quantum-mechanically. For instance, in 2012 Lo Franco et al [24] investigated the revival of quantum correlations without system-environment back-action in a two-qubit system each locally subjected to a classical random external field (CREF) and explained that quantum correlations can revive also for classical independent environments in absence of back-action.…”

Section: Introductionmentioning

confidence: 99%

Effects of classical random external field on the dynamics of entanglement in a four-qubit system

Fosso¹,

Nya²,

Kenfack³

et al. 2021

Chinese Phys. B

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We investigate the dynamics of entanglement through negativity and witness operators in a system of four non-interacting qubits driven by a classical phase noisy laser characterized by a classical random external field (CREF). The qubits are initially prepared in the GHZ-type and W-type states and interact with the CREF in two different qubit-field configurations, namely, common environment and independent environments in which the cases of equal and different field phase probabilities are distinguished. We find that entanglement exhibits different decaying behavior, depending on the input states of the qubits, the qubit-field coupling configuration, and field phase probabilities. On the one hand, we demonstrate that the coupling of the qubits in a common environment is an alternative and more efficient strategy to completely shield the system from the detrimental impacts of the decoherence process induced by a CREF, independent of the input state and the field phase probabilities considered. Also, we show that GHZ-type states have strong dynamics under CREF as compared to W-type states. On the other hand, we demonstrate that in the model investigated the system robustness’s can be greatly improved by increasing the number of qubits constituting the system.

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Classification of Classical Non-Gaussian Noises with Respect to Their Detrimental Effects on the Evolution of Entanglement Using a System of Three-Qubit as Probe

Cited by 2 publications

References 37 publications

Effects of colored noise on the dynamics of quantum entanglement of a one-parameter qubit–qutrit system

Effects of colored noise on the dynamics of quantum entanglement of a one-parameter qubit–qutrit system

Effects of classical random external field on the dynamics of entanglement in a four-qubit system

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