AI Article Synopsis
- The study investigates the effects of Dzyaloshinskii-Moriya interaction on dipolar-coupled spin systems at thermal equilibrium, focusing on quantum-memory-assisted entropic uncertainty relations, entropy mixedness, and two-spin entanglement.
- As temperature increases, quantum entanglement decreases while the uncertainty and mixedness of the entropy increase, stabilizing at high temperatures.
- The findings highlight that, without D-M interaction, two-spin entanglement vanishes, and the nature of entropic uncertainty can be better assessed through entropy mixedness rather than concurrence.
Article Abstract
In the thermodynamic equilibrium of dipolar-coupled spin systems under the influence of a Dzyaloshinskii-Moriya (D-M) interaction along the -axis, the current study explores the quantum-memory-assisted entropic uncertainty relation (QMA-EUR), entropy mixedness and the concurrence two-spin entanglement. Quantum entanglement is reduced at increased temperature values, but inflation uncertainty and mixedness are enhanced. The considered quantum effects are stabilized to their stationary values at high temperatures. The two-spin entanglement is entirely repressed if the D-M interaction is disregarded, and the entropic uncertainty and entropy mixedness reach their maximum values for equal coupling rates. Rather than the concurrence, the entropy mixedness can be a proper indicator of the nature of the entropic uncertainty. The effect of model parameters (D-M coupling and dipole-dipole spin) on the quantum dynamic effects in thermal environment temperature is explored. The results reveal that the model parameters cause significant variations in the predicted QMA-EUR.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8700510 | PMC |
| http://dx.doi.org/10.3390/e23121595 | DOI Listing |
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