Dynamically Encircling Exceptional Points: Exact Evolution and Polarization State Conversion.
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DOI: 10.1103/physrevlett.118.093002
Abstract: We show that a two-level non-Hermitian Hamiltonian with constant off-diagonal exchange elements can be analyzed exactly when the underlying exceptional point is perfectly encircled in the complex plane. The state evolution of this system is… read more here.
Keywords: state; evolution; polarization; polarization state ... See more keywords
Harnessing Dynamical Encircling of an Exceptional Point in Anti-PT-Symmetric Integrated Photonic Systems.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.273601
Abstract: Dynamically encircling an exceptional point in a non-Hermitian system can lead to chiral behaviors, but this process is difficult for on-chip PT-symmetric devices which require accurate control of gain and loss rates. Here, we experimentally… read more here.
Keywords: anti symmetric; symmetric integrated; integrated photonic; exceptional point ... See more keywords