多量子核磁共振实验中双自旋系统的Lindblad脱相弛豫和量子纠缠

IF 1.1 4区物理与天体物理 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Applied Magnetic Resonance Pub Date : 2025-06-21 DOI:10.1007/s00723-025-01763-2

E. B. Fel’dman, E. I. Kuznetsova, E. I. Shipulya, S. G. Vasil’ev, A. I. Zenchuk

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引用次数: 0

摘要

基于多量子核磁共振实验中的Lindblad方程，研究了具有偶极-偶极相互作用的双自旋-1/2系统中的失相弛豫和量子纠缠。研究了多量子核磁共振动力学。结果表明，MQ NMR谱仅由零阶和正/负秒级的MQ NMR相干组成。计算了MQ核磁共振相干强度。量子相关（纠缠）也被考虑。研究了纠缠态与二阶MQ核磁共振相干性的关系。

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Lindblad Dephasing Relaxation and Quantum Entanglement in Two-Spin Systems in Multiple-Quantum NMR Experiments

Dephasing relaxation and quantum entanglement are studied in a two-spin-1/2 system with the dipole–dipole interaction on a basis of the Lindblad equation in multiple-quantum NMR experiments. A multiple-quantum (MQ) NMR dynamics is investigated. It is shown that MQ NMR spectrum consists of only MQ NMR coherences of zeroth- and plus/minus-second orders. Intensities of MQ NMR coherences are calculated. Quantum correlations (entanglement) are also considered. The relationship between entanglement and the MQ NMR coherence of the second order is also investigated.

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来源期刊

Applied Magnetic Resonance 物理-光谱学

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

2.3 months

期刊介绍： Applied Magnetic Resonance provides an international forum for the application of magnetic resonance in physics, chemistry, biology, medicine, geochemistry, ecology, engineering, and related fields. The contents include articles with a strong emphasis on new applications, and on new experimental methods. Additional features include book reviews and Letters to the Editor.