Effect of Induced Transition on the Quantum Entanglement and Coherence in Two‐Coupled Double Quantum Dot System

Dahbi, Zakaria; Anka, Maron F.; Mansour, M.; Rojas, M.; Cruz, Clebson

doi:10.1002/andp.202200537

Cited by 12 publications

(2 citation statements)

References 75 publications

(150 reference statements)

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“…This research focuses on correlated coherence [46], which measures the coherence within the correlations between subsystems of a quantum system. Many studies have been dedicated to characterizing quantum coherence in Heisenberg spin chains and other quantum systems [47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

Quantum correlations and thermal coherence in a two-superconducting charge qubit system

Benzahra,

Mansour,

Oumennana

et al. 2023

Laser Phys.

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Superconducting charge qubits represent a cutting-edge technology in the field of quantum computing, offering a promising platform for quantum processing. This study delves into the behaviors of thermal coherence and quantum correlations within a two-superconducting charge qubit system coupled by a fixed capacitance. Specifically, we investigate the effects of thermal noise on entanglement (measured by concurrence), nonclassical correlations (quantified by local quantum uncertainty), and quantum coherence (measured by correlated coherence) within the two-superconducting charge qubit capacitively coupled. Our analysis takes into account the interplay between the equilibrium temperature of the reservoir and various system parameters. Our findings demonstrate that an increase in temperature leads to a decrease in coherence and quantum correlations within the considered system. However, the behavior of these quantum resources is heavily dependent on the system parameters, and a careful selection of these parameters can help mitigate the negative effects of absolute temperature. Additionally, we observe that local quantum uncertainty and correlated coherence are more resilient than thermal entanglement to rising temperatures. These results provide insight into how a two-superconducting charge qubit system can be optimized for achieving quantum advantages.

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Section: Introductionmentioning

confidence: 99%

Quantum correlations and thermal coherence in a two-superconducting charge qubit system

Benzahra,

Mansour,

Oumennana

et al. 2023

Laser Phys.

Self Cite

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“…Besides, the authors in ref. [64] have conducted a study on thermal entanglement and quantum coherence in two‐coupled DQDs, taking into account the effect of external stimulus. The system of double quantum dots is also used as a working substance for heat machines.…”

Section: Introductionmentioning

confidence: 99%

Prospecting Quantum Correlations and Examining Teleportation Fidelity in a Pair of Coupled Double Quantum Dots System

Ait Chlih,

Rahman,

Habiballah

2023

Annalen der Physik

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The topic of improving the ability of quantum systems to retain non‐local features and enhance the efficiency of quantum protocols continues. This study delves into the thermal investigation of quantum correlations and teleportation fidelity of a two‐qubit teleported state using excess electrons in a coupled double quantum dots system as a quantum channel. The study employs three reliable quantum quantifiers to prospect the resourcefulness and non‐classicality of the system. The findings suggest that preserving quantum correlations and optimizing teleportation fidelity require minimizing tunneling coupling and maximizing Coulomb interaction. The study has significant implications for quantum physics and its practical applications in quantum information processing.

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Skew information correlations and bipartite entanglement in hybrid qubit–qutrit system under intrinsic decoherence effect

Chaouki

Mansour

2023

Appl. Phys. B

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Effect of Induced Transition on the Quantum Entanglement and Coherence in Two‐Coupled Double Quantum Dot System

Cited by 12 publications

References 75 publications

Quantum correlations and thermal coherence in a two-superconducting charge qubit system

Quantum correlations and thermal coherence in a two-superconducting charge qubit system

Prospecting Quantum Correlations and Examining Teleportation Fidelity in a Pair of Coupled Double Quantum Dots System

Skew information correlations and bipartite entanglement in hybrid qubit–qutrit system under intrinsic decoherence effect

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