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arXiv · 1201.3902

Adiabatic demagnetization and generation of entanglement in spin systems

Gregory B. Furman·Victor M. Meerovich·Vladimir L. Sokolovsky
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Abstract

We study the entanglement emergence in a dipolar-coupled nuclear spin-1/2 system cooled using the adiabatic demagnetization technique. The unexpected behavior of entanglement for the next- and next-next-neighbor spins is revealed: entangled states of a spin system appear in two distinct temperature and magnetic field regions separated by a zero-concurrence area. The magnetic field dependence of the concurrence can have two maximums which positions are determined by the initial conditions and number of spins in a chain.

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Gregory B. Furman, Victor M. Meerovich, Vladimir L. Sokolovsky. 2012-01-18. Adiabatic demagnetization and generation of entanglement in spin systems. https://doi.org/10.1016/j.physleta.2012.01.019

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