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21 September 2017 Giant vacuum friction: PT symmetric spectral singularity and negative frequency resonance (Conference Presentation)
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Abstract
Vacuum consists of a bath of balanced and symmetric positive and negative frequency fluctuations. Media in relative motion or accelerated observers can break this symmetry and preferentially amplify negative frequency modes as in Quantum Cherenkov radiation and Unruh radiation. Here, we show the existence of a universal negative frequency-momentum mirror symmetry in the relativistic Lorentzian transformation for electromagnetic waves. We show the connection of our discovered symmetry to parity-time (PT) symmetry in moving media and the resulting spectral singularity in vacuum fluctuation related effects. We prove that this spectral singularity can occur in the case of two metallic plates in relative motion interacting through positive and negative frequency plasmonic fluctuations (negative frequency resonance). Our work paves the way for understanding the role of PT-symmetric spectral singularities in amplifying fluctuations and motivates the search for PT-symmetry in novel photonic systems. [1] arXiv:1612.02050 [physics.optics]
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sarang Pendharker, Yu Guo, Farhad Khosravi, and Zubin Jacob "Giant vacuum friction: PT symmetric spectral singularity and negative frequency resonance (Conference Presentation)", Proc. SPIE 10359, Quantum Nanophotonics, 1035905 (21 September 2017); https://doi.org/10.1117/12.2274573
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KEYWORDS
Plasmonics

Cerenkov radiation imaging

Electromagnetic radiation

Metamaterials

Mirrors

Photon polarization

Photonics systems

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