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The European Physical Journal Plus

Enhancing the intrinsic decoherence dynamics of quantum nonlocality for semiconductor quantum dot qubits: quantum steering, bell nonlocality and entanglement

A.-B.A. Mohamed, Emad K. Jaradat, Ahmad N. Khedr, S.S. Alharbi

Published Apr 17, 2026• 0 citations
Publisher
DOI
10.1140/epjp/s13360-026-07607-7

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In this paper, we explore nonlocal correlation and Bell non-locality in a two-qubit Heisenberg XYZ model by using Bell-CHSH inequality and uncertainty induced nonlocality (UIN) as well as log-negativity. We consider the effects of spin-qubits XYZ-Heisenberg couplings, the y-component of DM interaction, and intrinsic decoherence. Our results show that spin-qubits Heisenberg couplings have a strong ability to create two-qubit nonlocal correlations, enhanced by combining with DM interactions. The generated Bell-CHSH nonlocality and entanglement conform to the hierarchy principle. The UIN correlation is more resistant to intrinsic decoherence compared to Bell-CHSH inequality and log-negativity. Intrinsic decoherence causes the disappearance of Bell-CHSH non-locality and log-negativity entanglement, while leading to the appearance of partial stationary spin-qubits UIN correlation.