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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.
- Source :
-
Physics Letters A . Jan2024, Vol. 493, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- We examine the Dzyaloshinski-Moriya (DM) and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions in thermal equilibrium submitted to the anisotropic Heisenberg two-qubit model in an inhomogeneous magnetic field. The steerability between the two qubits is evaluated using quantum steering. The concurrence serves as a witness to quantum entanglement. Both the extracted work and the ideal efficiency of the two qubits are quantified. We discuss how quantum correlations behave in relation to the bath's temperature, the Kaplan-Shekhtman-Entin-Wohlman-Aharony coupling parameter and DM coupling. We find that the nonclassical correlations in a two-qubit Heisenberg XYZ Model are fragile under thermal effects. Nevertheless, the results indicate that the concurrence is stronger than quantum steering under thermal effects in the presence of DM and KSEA. We obtained that an extraction of work is comparable with the bare energies. • We quantify the degree of steerability and entanglement between the two qubits. • We investigate the comparison between quantum steering and concurrence in the steady state. • We quantify both the extracted work and the ideal efficiency. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03759601
- Volume :
- 493
- Database :
- Academic Search Index
- Journal :
- Physics Letters A
- Publication Type :
- Academic Journal
- Accession number :
- 174411001
- Full Text :
- https://doi.org/10.1016/j.physleta.2023.129245