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Photonic bandgap structure and long-range periodicity of a cumulative Fibonacci lattice
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作者 Xiong Hui Chenhui Yu 《Photonics Research》 SCIE EI 2017年第1期11-14,共4页
In this work, we study the photonic band of cumulative Fibonacci lattices, of which the structure is composed of all generated units in a Fibonacci sequence. The results are compared with distributed Bragg reflector(D... In this work, we study the photonic band of cumulative Fibonacci lattices, of which the structure is composed of all generated units in a Fibonacci sequence. The results are compared with distributed Bragg reflector(DBR)structures with the same numbers of layers. Photonic bandgaps are found at two characteristic frequencies, symmetrically separated from the central bandgap in the DBR counterpart. Field amplitude and phase distribution in the Fibonacci lattice indicates an interferential origin of the bandgaps. Fourier transform on the refractive index profile is carried out, and the result confirms a determinate long-range periodicity that agrees well with the photonic band structure. 展开更多
关键词 DBR Photonic bandgap structure and long-range periodicity of a cumulative fibonacci lattice
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Phase Transitions Governed by the Fifth Power of the Golden Mean and Beyond 被引量:6
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作者 Hans Hermann Otto 《World Journal of Condensed Matter Physics》 2020年第3期135-158,共24页
In this contribution results from different disciplines of science were compared to show their intimate interweaving with each other having in common the golden ratio <span style="font-family:Verdana;">... In this contribution results from different disciplines of science were compared to show their intimate interweaving with each other having in common the golden ratio <span style="font-family:Verdana;">φ<span style="font-family:Verdana;"> respectively its fifth power <span style="font-family:Verdana;">φ<sup><span style="font-family:Verdana;">5</sup><span style="font-family:Verdana;">. The research fields cover model calculations of statistical physics associated with phase transitions, the quantum probability of two particles, new physics of everything suggested by the information relativity theory (<span style="font-family:Verdana;">IRT<span style="font-family:Verdana;">) including explanations of cosmological relevance, the <span style="font-family:Verdana;">ε<span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">-<span style="font-family:;" "=""><span style="font-family:Verdana;">infinity theory, superconductivity, and the <span style="font-family:Verdana;">Tammes<span style="font-family:Verdana;"> problem of the largest diameter of <span style="font-family:Verdana;">N<span style="font-family:Verdana;"> non-overlapping circles on the surface of a sphere with its connection to viral morphology and crystallography. Finally, <span style="font-family:Verdana;">Fibo<span style="font-family:Verdana;">nacci<span style="font-family:Verdana;"> anyons proposed for topological quantum<span style="font-family:Verdana;"> computation (<span style="font-family:Verdana;">TQC<span style="font-family:Verdana;">) were briefly described in comparison to the recently formulated reverse <span style="font-family:Verdana;">Fibonacci<span style="font-family:Verdana;"> approach using the <span style="font-family:Verdana;">Jani<span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="white-space:nowrap;">&#269;ko<span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> number sequence. An architecture applicable for a quantum computer is proposed consisting of 13-step twisted microtubules similar to tubulin microtubules of living matter. Most topics point to the omnipresence of the golden mean as the numerical dominator of our world. 展开更多
关键词 Golden Mean Phase Transitions Hard-Hexagon Respectively Hard-Square Gas Model Quantum Probability Information Relativity Theory (IRT) ε-Infinity Theory Superconductivity Tammes Problem Viral Morphology Helical Microtubules Janičko Number Sequence Topological Quantum Computation fibonacci lattice CRYSTALLOGRAPHY
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Quantum diffusion in semi-infinite periodic and quasiperiodic systems
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作者 张凯旺 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第3期1113-1118,共6页
This paper studies quantum diffusion in semi-infinite one-dimensional periodic lattice and quasiperiodic Fibonacci lattice. It finds that the quantum diffusion in the semi-infinite periodic lattice shows the same prop... This paper studies quantum diffusion in semi-infinite one-dimensional periodic lattice and quasiperiodic Fibonacci lattice. It finds that the quantum diffusion in the semi-infinite periodic lattice shows the same properties as that for the infinite periodic lattice. Different behaviour is found for the semi-infinite Fibonacci lattice. In this case, there are still C(t) - t^-δ and d(t) - t^β. However, it finds that 0 〈δ 〈 1 for smaller time, and δ = 0 for larger time due to the influence of surface localized states. Moreover, β for the semi-infinite Fibonacci lattice is much smaller than that for the infinite Fibonacci lattice. Effects of disorder on the quantum diffusion are also discussed. 展开更多
关键词 quantum diffusion SEMI-INFINITE periodic lattice quasiperiodic fibonacci lattice
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