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Phys Rev Lett. 2010 Aug 6;105(6):067402. Epub 2010 Aug 2.

Metric signature transitions in optical metamaterials.

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Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA.


We demonstrate that the extraordinary waves in indefinite metamaterials experience an (--++) effective metric signature. During a metric signature change transition in such a metamaterial, a Minkowski space-time is created together with a large number of particles populating the space-time. Such metamaterial models provide a tabletop realization of metric signature change events suggested to occur in Bose-Einstein condensates and quantum gravity theories.

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