Research Article

Emergence and Frustration of Magnetism with Variable-Range Interactions in a Quantum Simulator

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Science  03 May 2013:
Vol. 340, Issue 6132, pp. 583-587
DOI: 10.1126/science.1232296

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Magnetic Frustration

The study of magnetic frustration has a long history in solid-state physics, but cold-atom systems now offer the possibility of simulating the problem with exquisite control. Islam et al. (p. 583) study a system of 16 trapped ions, using the Coulomb interactions between the ions to simulate exchange interactions present in magnetic systems. The measured spin correlations provide a window into the behavior of the system, as the effective magnetic field and the range of the interactions are tuned.