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Back Cover: PT symmetry in a fractional Schrödinger equation (Laser Photonics Rev. 10(3)/2016)
Publication year - 2016
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201670038
Subject(s) - photonics , physics , cover (algebra) , conical surface , laser , ring (chemistry) , symmetry (geometry) , radius , schrödinger equation , quantum mechanics , optics , computer science , mathematics , geometry , mechanical engineering , chemistry , computer security , organic chemistry , engineering
In the fractional Schrodinger equation with a PT symmetric potential, the band structure at the critical point becomes linear. Therefore, if the input light excites the mode of the linear band, light will exhibit a conical diffraction during propagation, i.e., the intensity distribution of the light is along a ring ‐ the radius of the ring increase linearly during propagation but the width of the ring remains the same. (Picture: Yiqi Zhang et al., 10.1002/lpor.201600037 pp. 526–531, in this issue)