Reviews of topical problems

PT-symmetry in optics

 a, b,  a, c, b,  a, c, b,  a, c, b,  d
a Moscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny, Moscow Region, 141701, Russian Federation
b Dukhov Research Institute of Automatics, ul. Sushchevskaya 22, Moscow, 119017, Russian Federation
c Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 127412, Russian Federation
d Department of Physics, Queens College of the City University of New York, Flushing, New York, USA

Quantum-mechanical and optical pseudo-Hermitian systems are reviewed with emphasis on PT-symmetric systems important for optics and electrodynamics. One of the most interesting and much discussed consequences of PT-symmetry is a phase transition with the breaking of the symmetry of the system's eigenstates. We show in the review that, although this phase transition is difficult to realize experimentally, a similar transition can be observed in quasi-PT-symmetric systems. Other effects predicted for PT-symmetric systems are not specific for these systems and can be observed in ordinary fully-passive systems.

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PACS: 03.65.Ca, 41.20.Jb, 42.79.−e (all)
DOI: 10.3367/UFNe.0184.201411b.1177
Citation: Zyablovsky A A, Vinogradov A P, Pukhov A A, Dorofeenko A V, Lisyansky A A "PT-symmetry in optics" Phys. Usp. 57 1063–1082 (2014)
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Received: 11th, February 2014, revised: 16th, April 2014, 13th, May 2014

Оригинал: Зябловский А А, Виноградов А П, Пухов А А, Дорофеенко А В, Лисянский А А «PT-симметрия в оптике» УФН 184 1177–1198 (2014); DOI: 10.3367/UFNr.0184.201411b.1177

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