Breaking of the overall permutation symmetry in nonlinear optical susceptibilities of one-dimensional periodic dimerized Hückel model
نویسندگان
چکیده
منابع مشابه
Breaking of the overall permutation symmetry in nonlinear optical susceptibilities of one-dimensional periodic dimerized Hückel model
Based on one-dimensional single-electron infinite periodic models of transpolyacetylene, we show analytically that the overall permutation symmetry of nonlinear optical susceptibilities is, although preserved in bound-state molecular systems, no longer generally held in periodic systems. The overall permutation symmetry breakdown provides a natural explanation of the widely observed large devia...
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Based on infinite one-dimensional periodic chain models (Su-Shrieffer-Heeger and Takayama-Lin-Liu-Maki) of trans-polyacetylene, we show analytically that the overall permutation symmetry of nonlinear optical susceptibilities is, albeit preserved in the molecular systems with only bound states, no longer generally held for the periodic systems. Hence it breaks the Kleinman symmetry in the off-re...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2006
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/18/39/027