Relativistic entanglement in single-particle quantum states using non-linear entanglement witnesses

Authors:
M. A. Jafarizadeh;M. Mahdian
Affiliations:
Department of Theoretical Physics and Astrophysics, University of Tabriz, Tabriz, Iran 51664;Department of Theoretical Physics and Astrophysics, University of Tabriz, Tabriz, Iran 51664
Venue:
Quantum Information Processing
Year:
2012

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Abstract

In this study, the spin-momentum correlation of one massive spin- $${\frac{1}{2}}$$ and spin-1 particle states, which are made based on the projection of a relativistic spin operator into timelike direction is investigated. It is shown that by using Non-Linear entanglement witnesses (NLEWs), the effect of Lorentz transformation would decrease both the amount and the region of entanglement.