Entanglement and multiple quantum coherence dynamics in spin clusters

G. B. Furman; V. M. Meerovich; V. L. Sokolovsky

doi:10.1007/s11128-009-0114-0

Entanglement and multiple quantum coherence dynamics in spin clusters

G. B. Furman, V. M. Meerovich, V. L. Sokolovsky

Department of Physics

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

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.

Original language	English
Pages (from-to)	379-386
Number of pages	8
Journal	Quantum Information Processing
Volume	8
Issue number	5
DOIs	https://doi.org/10.1007/s11128-009-0114-0
State	Published - 1 Oct 2009

Keywords

Concurrence
Entanglement
Multiple quantum coherences
Spin correlations
Spin dynamics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Statistical and Nonlinear Physics
Theoretical Computer Science
Signal Processing
Modeling and Simulation
Electrical and Electronic Engineering

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10.1007/s11128-009-0114-0

Cite this

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author = "Furman, {G. B.} and Meerovich, {V. M.} and Sokolovsky, {V. L.}",

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T1 - Entanglement and multiple quantum coherence dynamics in spin clusters

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AU - Meerovich, V. M.

AU - Sokolovsky, V. L.

N1 - Funding Information: GB would like to thank Ohalo College for supporting in part this work.

PY - 2009/10/1

Y1 - 2009/10/1

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AB - 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.

KW - Concurrence

KW - Entanglement

KW - Multiple quantum coherences

KW - Spin correlations

KW - Spin dynamics

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Entanglement and multiple quantum coherence dynamics in spin clusters

Abstract

Keywords

ASJC Scopus subject areas

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