Nonlinear Wavefront Control by Geometric‐Phase Dielectric Metasurfaces: Influence of Mode Field and Rotational Symmetry
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.201902050
Abstract: Nonlinear Pancharatnam–Berry phase metasurfaces facilitate the nontrivial phase modulation for frequency conversion processes by leveraging photon‐spin dependent nonlinear geometric‐phases. However, plasmonic metasurfaces show some severe limitation for nonlinear frequency conversion due to the intrinsic high… read more here.
Keywords: phase; field; geometric phases; nonlinear geometric ... See more keywords
Geometric Phases in Majorana Zero-Energy State
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-019-04160-1
Abstract: The usual Berry phase for a Majorana zero-energy state is zero. In this manuscript, we propose a generalized geometric phase for Majorana zero-energy state, which is non-zero for the electron or hole, respectively. We calculate… read more here.
Keywords: zero energy; majorana zero; geometric phases; energy state ... See more keywords
Geometric phases of mixed quantum states: A comparative study of interferometric and Uhlmann phases
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DOI: 10.1103/physrevb.107.165415
Abstract: Two geometric phases of mixed quantum states, known as the interferometric phase and Uhlmann phase, are generalizations of the Berry phase of pure states. After reviewing the two geometric phases and examining their parallel-transport conditions,… read more here.
Keywords: mixed quantum; geometric phases; quantum states; phase ... See more keywords
Effects of light-wave nonstaticity on accompanying geometric-phase evolutions
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DOI: 10.1364/oe.440512
Abstract: Quantum mechanics allows the emergence of nonstatic quantum light waves in the Fock state even in a transparent medium of which electromagnetic parameters do not vary over time. Such wave packets become broad and narrow… read more here.
Keywords: geometric phases; time; nonstaticity; accompanying geometric ... See more keywords