Observation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">P</mml:mi><mml:mi mathvariant="script">T</mml:mi></mml:math>-Symmetry Breaking in Complex Optical Potentials
A. R. GuoDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USAGregory J. SalamoDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USAD. DuchesneDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USARoberto MorandottiDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USAM. Volatier-RavatDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USAVincent AimezDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USAGeorgios A. SiviloglouDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USADemetrios N. ChristodoulidesDepartment of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
2009en
ABI
Аннотация
In 1998, Bender and Boettcher found that a wide class of Hamiltonians, even though non-Hermitian, can still exhibit entirely real spectra provided that they obey parity-time requirements or PT symmetry. Here we demonstrate experimentally passive PT-symmetry breaking within the realm of optics. This phase transition leads to a loss induced optical transparency in specially designed pseudo-Hermitian guiding potentials.
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