Entanglement of a cavity with a three-level atom and a graphene membrane in the presence of a laser field

Alruqi, Adel Bandar; Khalil, E. M.; Abdel‐Khalek, S.; Abd‐Rabbou, M. Y.

doi:10.1016/j.aej.2023.05.070

Cited by 2 publications

(2 citation statements)

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“…The whole dynamical map remains Markovian and no sudden death and birth of the quantum characteristics has been noticed. This contradicts the dynamical map of threelevel atoms entanglement given in [41], however, matches with the dynamics of an open system under power-law noise [48].…”

Section: Resultsmentioning

confidence: 60%

“…We take the trace norm of the partial transpose for the reduced density states of these systems in order to continue with negativity entanglement. Consequently, the expression to compute N for the tripartite system ρ abc (with a, b, c being the sub-parts) while considering 1 − 3 tangle, 1 − 1 tangle have the form [41]…”

Section: Tripartite Entanglement Negativitymentioning

confidence: 99%

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The influence of Ohmic noise on the dynamics of three-spin open quantum system

Javed,

Salim,

Said

et al. 2024

Laser Phys.

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The dynamics of open quantum systems under decoherence effects remain a hotly debated topic in the case of the practical deployment of quantum information processing. In this regard, we examine how the three-qubit mixed state is affected by changes in the cut-off frequency of the Ohmic spectral density in a harmonic reservoir. Specifically, the degree of quantum memory-assisted entropic uncertainty (QMA-EU), along with the entanglement, coherence, and purity of the system, is to be demonstrated. A thorough exercise is done to investigate any underlying relationship between the three-qubit quantum characteristics. We show that a harmonic reservoir controlled by Ohmic noise prevails a monotonic-like decay in the current case where, sooner or later, the state becomes completely disentangled, decoherent, and mixed. The QMA-EU has always been found to have an increasing function causing the quantum resourcefulness to be reduced. Although, there is no pathway to avoid the Ohmic noise consequences and complete decay, however, we provided parameterization which would lead to prolonged preservation of quantum correlations with time. Finally, we provide various settings for the tuning of cut-off frequency regarding the Ohmic type bath and state parameters on the initial as well as final levels of quantum features.

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Section: Resultsmentioning

confidence: 60%

Section: Tripartite Entanglement Negativitymentioning

confidence: 99%