Polarization and entanglement in spin systems

TL;DR

This paper explores the relationship between entanglement measures and spin polarization in nuclear spin systems, highlighting how NMR techniques enable studying entanglement dynamics and potentially linking entanglement with measurable order parameters.

Contribution

It establishes a connection between entanglement measures and spin polarization, proposing a method to study entanglement dynamics via NMR in nuclear spin systems.

Findings

Entanglement correlates with spin polarization in NMR-controlled systems.

NMR allows manipulation and observation of entanglement creation and evolution.

Potential extension of methods to other quantum systems.

Abstract

We established important relationships between entanglement measures and the order parameter (spin polarization) in nuclear spin systems controlled by the nuclear magnetic resonance (NMR) technique. Since spin polarization can be easily manipulated by the NMR technique, experimentalists are presented with an opportunity to study the dynamic properties of entanglement, i.e., the creation and evolution of entangled states. Our approach may constitute the basis for researching the relations between the entanglement measures and measurable parameters of order in other quantum systems.