Article ID Journal Published Year Pages File Type
7933754 Physica E: Low-dimensional Systems and Nanostructures 2018 20 Pages PDF
Abstract
In this paper, we investigate the characteristics of the nuclear spin entanglement generated by an intermedium with an optically excited triplet. Significantly, the interaction between the two nuclear spins presents to be a direct XY coupling in each of the effective subspace Hamiltonians which are obtained by applying a transformation on the natural Hamiltonian. The quantum concurrence and negativity are discussed to quantitatively describe the quantum entanglement, and a comparison between them can reveal the nature of their relationship. An innovative general equation describing the relationship between the concurrence and negativity is explicitly obtained.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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