Relaxation of maximally entangled quantum states of two nonequivalent nuclear spins in a liquid
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| Format: | Preprint |
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2024
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| _version_ | 1866917606097682432 |
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| author | Baroncha, Georgiy Perepukhov, Alexander Fine, Boris V. |
| author_facet | Baroncha, Georgiy Perepukhov, Alexander Fine, Boris V. |
| contents | We investigate both experimentally and theoretically the relaxation of pseudo-pure maximally entangled states (Bell states) of two nuclear spins 1H-13C belonging to a molecule in a liquid. The Bell states are obtained by a method based on a detuned Hartmann-Hahn cross-polarization condition. Their entangled character is verified by quantum-state tomography. Our relaxation measurements reveal different relaxation rates for different Bell states. We interpret this difference as originating from cross-correlations between different relaxation mechanisms, thereby demonstrating that the measurements of the differential relaxation of Bell states are potentially useful for advanced NMR characterization of liquids. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_03924 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Relaxation of maximally entangled quantum states of two nonequivalent nuclear spins in a liquid Baroncha, Georgiy Perepukhov, Alexander Fine, Boris V. Quantum Physics Other Condensed Matter Chemical Physics We investigate both experimentally and theoretically the relaxation of pseudo-pure maximally entangled states (Bell states) of two nuclear spins 1H-13C belonging to a molecule in a liquid. The Bell states are obtained by a method based on a detuned Hartmann-Hahn cross-polarization condition. Their entangled character is verified by quantum-state tomography. Our relaxation measurements reveal different relaxation rates for different Bell states. We interpret this difference as originating from cross-correlations between different relaxation mechanisms, thereby demonstrating that the measurements of the differential relaxation of Bell states are potentially useful for advanced NMR characterization of liquids. |
| title | Relaxation of maximally entangled quantum states of two nonequivalent nuclear spins in a liquid |
| topic | Quantum Physics Other Condensed Matter Chemical Physics |
| url | https://arxiv.org/abs/2403.03924 |