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Title: Multipartite quantum correlations reveal frustration in a quantum Ising spin system
Authors: Rama Koteswara Rao, K.
Katiyar, Hemant
Sen (De), A.
Sen, U.
Kumar, A.
Dept. of Physics
Keywords: Multipartite quantum
Correlations reveal
Nonfrustrated regimes
Experimental ground
Issue Date: Aug-2013
Publisher: American Physical Society
Citation: Physical Review A, 88(2, )022312.
Abstract: We report a nuclear magnetic resonance experiment, which simulates the quantum transverse Ising spin system in a triangular configuration, and further demonstrate that multipartite quantum correlations can be used to distinguish between the frustrated and the nonfrustrated regimes in the ground state of this system. Adiabatic state preparation methods are used to prepare the ground states of the spin system. We employ two different multipartite quantum correlation measures to analyze the experimental ground state of the system in both the frustrated and the nonfrustrated regimes. As expected from theoretical predictions, the experimental data confirm that the nonfrustrated regime shows higher multipartite quantum correlations compared to the frustrated one.
ISSN: 1050-2947
Appears in Collections:JOURNAL ARTICLES

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