Many-Spin Entanglement in Zigzag Spin Chain in Multiple Quantum NMR
| Autor: | S. I. Doronin, G. A. Bochkin, Edward B. Fel'dman, I.D. Lazarev, E. I. Kuznetsova, S. G. Vasil’ev |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Condensed matter physics Spins Solid-state physics Second moment of area Quantum entanglement 010402 general chemistry 01 natural sciences Upper and lower bounds Atomic and Molecular Physics and Optics 030218 nuclear medicine & medical imaging 0104 chemical sciences k-nearest neighbors algorithm 03 medical and health sciences 0302 clinical medicine Zigzag Condensed Matter::Strongly Correlated Electrons Spin-½ |
| Zdroj: | Applied Magnetic Resonance. 51:667-678 |
| ISSN: | 1613-7507 0937-9347 |
| Popis: | Many-spin entanglement is investigated in one-dimensional zigzag chains, consisting of up to 12 spins 1/2, with nearest neighbor and next nearest neighbor interactions at high and low temperatures. We consider multiple quantum (MQ) nuclear magnetic resonance (NMR) dynamics. The second moment of the distribution of MQ coherences, which provides a lower bound on the quantum Fisher information, is calculated for different temperatures and evolution times. The dependence of the number of the entangled spins on the temperature and the chain length is obtained. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink