Hyperbolic metamaterial interfaces: Hawking radiation from Rindler horizons and spacetime signature transitions

Igor I. Smolyaninov, University of Maryland College Park
Ehren R. Hwang, University of Maryland College Park
Evgenii Narimanov, Birck Nanotechnology Center, Purdue University

Date of this Version

6-14-2012

Citation

Igor I. Smolyaninov, Ehren Hwang, and Evgenii Narimanov Phys. Rev. B 85, 235122. 14 June 2012

Comments

This is the published version of Igor I. Smolyaninov, Ehren Hwang, and Evgenii Narimanov. 14 June 2012. Hyperbolic metamaterial interfaces: Hawking radiation from Rindler horizons and spacetime signature transitions. First published in the Physical Review B and is available online at: https://doi.org/10.1103/PhysRevB.85.235122

Abstract

Extraordinary rays in a hyperbolic metamaterial behave as particle world lines in a three-dimensional (2 + 1) Minkowski spacetime. We analyze electromagnetic field behavior at the boundaries of this effective spacetime depending on the boundary orientation. If the boundary is perpendicular to the spacelike direction in the metamaterial, an effective Rindler horizon may be observed, which produces Hawking radiation. On the other hand, if the boundary is perpendicular to the timelike direction, the system undergoes a phase transition to a state with a different nature of the spacetime, with nonintegrable field divergence at the transformation point. Experimental observations of the transition using plasmonic metamaterials confirm this conclusion.

 

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