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arXiv · 1104.0275

Experimental Quantum Simulation of Entanglement in Many-body Systems

Jingfu Zhang·Tzu-Chieh Wei·Raymond Laflamme
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Abstract

We employ a nuclear magnetic resonance (NMR) quantum information processor to simulate the ground state of an XXZ spin chain and measure its NMR analog of entanglement, or pseudo-entanglement. The observed pseudo-entanglement for a small-size system already displays singularity, a signature which is qualitatively similar to that in the thermodynamical limit across quantum phase transitions, including an infinite-order critical point. The experimental results illustrate a successful approach to investigate quantum correlations in many-body systems using quantum simulators.

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Jingfu Zhang, Tzu-Chieh Wei, Raymond Laflamme. 2011-07-25. Experimental Quantum Simulation of Entanglement in Many-body Systems. https://doi.org/10.1103/physrevlett.107.010501

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