Multiple Quantum NMR and Entanglement Dynamics in Dipolar Coupling Spin

Details Multiple Quantum NMR and Entanglement Dynamics in Dipolar Coupling Spin Multiple Quantum NMR and Entanglement Dynamics in Dipolar Coupling Spin

2008-09-05

arxiv.org/abs/0809.1049v1

Physics

Quantum Physics

14 pages, 3 figures. accepted for publication in Physical Review A

Scientific paper

10.1103/PhysRevA.78.042301

We investigate numerically the time dependence of the multiple quantum coherences and entanglement in linear chains up to nine nuclear spins of 1/2 coupled by the dipole-dipole interactions. Two models are considered: (1) a spin chain with nearest-neighbor dipole -dipole interactions; (2) a more realistic model with interactions between all spins. It is shown that the entangled states appear between remote particles which do not interact directly (model 1), while the interaction between all spins (model 2) not always results in entanglement between remote spins.

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