Improving the bidirectional steerability between two accelerated partners via filtering process

Abd‐Rabbou, M. Y.; Metwally, N.; Ahmed, M. M. A.; Obada, A.‐S. F.

doi:10.1142/s0217732322501437

Cited by 14 publications

(4 citation statements)

References 48 publications

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“…In which, , , where the states represent the two possible eigenvectors of . Likewise, for the reduced density state , the information entropy gives , with , (for more details, see 64 , 65 ). Using previous notation and employing the qubit–qubit density operator ( 7 ), the qubit–qubit EUR-steering inequality can be given by with …”

Section: Steering Inequalitymentioning

confidence: 99%

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Bidirectional field-steering and atomic steering induced by a magnon mode in a qubit-photon system

Zahia,

Abd-Rabbou,

Megahed

et al. 2023

Sci Rep

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This paper investigates the cavity–magnon steering and qubit–qubit steering of a hybrid quantum system consisting of a single-mode magnon, a two-qubit state, and a single-mode cavity field in the presence of their damping rates. The temporal wave vector of the system is obtained for the initial maximally entangled two-qubit state and initial vacuum state of the magnon and cavity modes. Additionally, the mathematical inequalities for obtaining the cavity–magnon steering and qubit–qubit steering are introduced. The findings reveal that steering between the magnon and cavity is asymmetric, while steering between the two qubits is symmetric in our system. Increasing the atom–field coupling improves steering from magnon to field, while reducing steering between the two qubits. Moreover, increasing magnon–field coupling enhances and elevates the lower bounds of qubit–qubit steering. Further, adding the damping rates causes deterioration of the cavity–magnon steering and qubit–qubit steering. However, the steering persistence is slightly greater when damping originates from the cavity field rather than the magnon modes based on the coupling parameters.

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Section: Steering Inequalitymentioning

confidence: 99%

“…The normalized qubit–qubit steering equations ( 26 ) can be written as 64 where is calculated for a maximally entangled two-qubit state (i.e. Bell states).…”

Section: Steering Inequalitymentioning

confidence: 99%

Bidirectional field-steering and atomic steering induced by a magnon mode in a qubit-photon system

Zahia,

Abd-Rabbou,

Megahed

et al. 2023

Sci Rep

Self Cite

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“…The degree of steerability from quantum dot 1 (Alice: d1) to quantum dot 2 (Bob: d2). It writes as follows [47,48]…”

Section: B Quantum Steeringmentioning

confidence: 99%

“…In this order, quantum steering vs entanglement and extracting work in an anisotropic two-qubit Heisenberg model in presence of external magnetic fields with DM and KSEA Interactions, was investigated [20,21]. Recently, the quantum correlations and fidelity are taking into consideration in the differents works [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Measure and control of quantum correlations in optomechanics

Amazioug

Daoud

2021

Eur. Phys. J. D

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We explore the quantum correlations, fidelity and quantum thermodynamics of two coupled double quantum dots containing two excess electrons. In this regard, we investigate and compare the evolution of those measures under thermal effects and tunneling coupling. We find the hierarchy of quantum correlations, and one-way steering between the two quantum dots. We found, as expect that the quantum correlations are diminishes by increasing the values of temperature. We show that this state can be used for quantum teleportation. On the other, we address the extracting work and efficiency of the state. We compare the extraction work with the bare energies. Our results show that quantum dots states have a reliable and better capacity to preserve quantum correlations and remain one of the good resources for the deployment of quantum information processing protocols.

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Two‐Qubit Steerability, Nonlocality, and Average Steered Coherence under Classical Dephasing Channels

et al. 2023

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When two qubits are prepared in a mixture of two Bell states and exposed to local transmission channels, the dynamics of steerability, Bell nonlocality, and average steered coherence are investigated. Disorders are assumed to influence the channels, resulting in either Markovian Ornstein-Uhlenbeck noise or non-Markovian static noise in two models: a single noisy channel or two local noisy channels. Their findings show that the type and number of classical channels, noise, and initial state must be in an optimal setting in order to preserve quantum correlations.

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Improving the bidirectional steerability between two accelerated partners via filtering process

Cited by 14 publications

References 48 publications

Bidirectional field-steering and atomic steering induced by a magnon mode in a qubit-photon system

Bidirectional field-steering and atomic steering induced by a magnon mode in a qubit-photon system

Measure and control of quantum correlations in optomechanics

Two‐Qubit Steerability, Nonlocality, and Average Steered Coherence under Classical Dephasing Channels

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