Entanglement and multiple quantum coherence dynamics in spin clusters

Authors:
G. B. Furman;V. M. Meerovich;V. L. Sokolovsky
Affiliations:
Department of Physics, Ben Gurion University, Beer Sheva, Israel 84105 and Ohalo College, Qazrin, Israel 12900;Department of Physics, Ben Gurion University, Beer Sheva, Israel 84105;Department of Physics, Ben Gurion University, Beer Sheva, Israel 84105
Venue:
Quantum Information Processing
Year:
2009

Citing 2
Cited 1

Quantum computation and quantum information

Quantum computation and quantum information
Principles of Quantum Computation And Information: Basic Tools And Special Topics

Principles of Quantum Computation And Information: Basic Tools And Special Topics

Entanglement in dipolar coupling spin system in equilibrium state

Quantum Information Processing

Quantified Score

Hi-index	0.00

Visualization

Abstract

With the purpose to reveal consistency between multiple quantum (MQ) coherences and entanglement, we investigate numerically the dynamics of these phenomena in one-dimensional linear chains and ring of nuclear spins 1/2 coupled by dipole---dipole interactions. As opposed to the calculation of the MQ coherence intensity based on the density matrix describing the spin system as a whole, we consider the "differentiated" intensity related only to the chosen spin pair based on the reduced density matrix. It is shown that the entanglement and the MQ coherence have similar dynamics only for nearest neighbors while we did not obtained any consistency for remote spins.