scholarly journals Optical Thouless conductance and level-spacing statistics in two-dimensional Anderson localizing systems

2019 ◽  
Vol 100 (6) ◽  
Author(s):  
Sandip Mondal ◽  
Randhir Kumar ◽  
Martin Kamp ◽  
Sushil Mujumdar
Keyword(s):  
Two Dimensional ◽  
Level Spacing

Level Spacing Distribution and Δ3-Statistics of Two Dimensional Disordered Electrons in Strong Magnetic Field

1993 ◽  
Vol 62 (8) ◽  
pp. 2762-2772 ◽  
Author(s):  
Yoshiyuki Ono ◽  
Hiroyuki Kuwano ◽  
Keith Slevin ◽  
Tomi Ohtsuki ◽  
and Bernhard Kramer
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Two Dimensional ◽  
Level Spacing ◽  
Spacing Distribution ◽  
Level Spacing Distribution

Level spacing statistics for two-dimensional massless Dirac billiards

2014 ◽  
Vol 23 (7) ◽  
pp. 070507 ◽  
Author(s):  
Liang Huang ◽  
Hong-Ya Xu ◽  
Ying-Cheng Lai ◽  
Celso Grebogi
Keyword(s):  
Two Dimensional ◽  
Level Spacing

Identification of semiclassical chaos in two-dimensional PT-symmetric systems

2003 ◽  
Vol 81 (6) ◽  
pp. 835-846 ◽  
Author(s):  
Asiri Nanayakkara ◽  
Chula Abayaratne
Keyword(s):  
Phase Space ◽  
Complex Systems ◽  
Quantum Level ◽  
Two Dimensional ◽  
Level Spacing ◽  
Chaotic Motions ◽  
Complex Phase ◽  
Wigner Distributions ◽  
Symmetric Complex ◽  
Symmetric Systems

Identification of regular and chaotic motions of two-dimensional PT-symmetric complex systems was investigated. New definitions have been introduced to study properties of trajectories in complex phase space. Projections of these trajectories on complex x- and y-planes, Lyapunov exponents, and surfaces of section have been used for identifying regular and irregular (chaotic) motions in complex phase space. Quantum level spacing distributions of these systems have also been calculated for finding out the connection between regular and irregular states with standard distributions such as Poisson and Wigner distributions. It has been found that the PT-symmetric complex systems behave in the same way as the real systems. PACS No.: 05.45.Ac

Spectrophotometric measurements of objective-prism spectra

1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler
Keyword(s):  
Progress Report ◽  
Two Dimensional ◽  
Objective Prism ◽  
Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

Introductory paper

1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan
Keyword(s):  
Line Intensity ◽  
Classification Scheme ◽  
Two Dimensional ◽  
Spectral Classification ◽  
Dimensional Array ◽  
Rr Lyrae ◽  
Metallic Line ◽  
Introductory Paper ◽  
Parameter Varying ◽  
Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

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