scholarly journals On a Quantum Waveguide with a Small PT-symmetric Perturbation

10.14311/938 ◽  
2007 ◽  
Vol 47 (2-3) ◽  
Author(s):  
D. Borisov
Keyword(s):  
Continuous Spectrum ◽  
Quantum Waveguide ◽  
Symmetric Perturbation

We consider a quantum waveguide with a small PT-symmetric perturbation described by a potential. We study the spectrum of such a system and show that the perturbation can produce eigenvalues near the threshold of the continuous spectrum. 

C. The Continuous Spectrum of Pulsating Variable Stars

1967 ◽  
Vol 28 ◽  
pp. 177-206
Author(s):  
J. B. Oke ◽  
C. A. Whitney
Keyword(s):  
Continuous Spectrum ◽  
Variable Stars ◽  
Velocity Fields ◽  
The Other ◽  
Line Spectrum ◽  
Direct Information ◽  
Thermodynamic Structure ◽  
Diagnostic Interpretation ◽  
Pulsating Variable Stars ◽  
The Continuum

Pecker:The topic to be considered today is the continuous spectrum of certain stars, whose variability we attribute to a pulsation of some part of their structure. Obviously, this continuous spectrum provides a test of the pulsation theory to the extent that the continuum is completely and accurately observed and that we can analyse it to infer the structure of the star producing it. The continuum is one of the two possible spectral observations; the other is the line spectrum. It is obvious that from studies of the continuum alone, we obtain no direct information on the velocity fields in the star. We obtain information only on the thermodynamic structure of the photospheric layers of these stars–the photospheric layers being defined as those from which the observed continuum directly arises. So the problems arising in a study of the continuum are of two general kinds: completeness of observation, and adequacy of diagnostic interpretation. I will make a few comments on these, then turn the meeting over to Oke and Whitney.

Continuous spectrum of a condensed discharge in a capillary

1992 ◽  
Vol 162 (6) ◽  
pp. 159 ◽  
Author(s):  
G.V. Ovechkin
Keyword(s):  
Continuous Spectrum ◽  
Condensed Discharge

scholarly journals Nontrivial topology in the continuous spectrum of a magnetized plasma

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Jeffrey B. Parker ◽  
J. W. Burby ◽  
J. B. Marston ◽  
Steven M. Tobias
Keyword(s):  
Continuous Spectrum ◽  
Magnetized Plasma ◽  
Nontrivial Topology

scholarly journals Improved Salp Swarm Algorithm with Simulated Annealing for Solving Engineering Optimization Problems

Symmetry ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1092
Author(s):  
Qing Duan ◽  
Lu Wang ◽  
Hongwei Kang ◽  
Yong Shen ◽  
Xingping Sun ◽  
...  
Keyword(s):  
Simulated Annealing ◽  
Optimization Problems ◽  
Chaotic Sequence ◽  
Engineering Optimization ◽  
Exploration And Exploitation ◽  
Salp Swarm Algorithm ◽  
Symmetric Perturbation ◽  
Swarm Algorithm ◽  
Search Capability ◽  
Engineering Optimization Problems

Swarm-based algorithm can successfully avoid the local optimal constraints, thus achieving a smooth balance between exploration and exploitation. Salp swarm algorithm(SSA), as a swarm-based algorithm on account of the predation behavior of the salp, can solve complex daily life optimization problems in nature. SSA also has the problems of local stagnation and slow convergence rate. This paper introduces an improved salp swarm algorithm, which improve the SSA by using the chaotic sequence initialization strategy and symmetric adaptive population division. Moreover, a simulated annealing mechanism based on symmetric perturbation is introduced to enhance the local jumping ability of the algorithm. The improved algorithm is referred to SASSA. The CEC standard benchmark functions are used to evaluate the efficiency of the SASSA and the results demonstrate that the SASSA has better global search capability. SASSA is also applied to solve engineering optimization problems. The experimental results demonstrate that the exploratory and exploitative proclivities of the proposed algorithm and its convergence patterns are vividly improved.

Bell states in a resonant quantum waveguide network

2004 ◽  
Vol 69 (4) ◽  
Author(s):  
Gursoy B. Akguc ◽  
Linda E. Reichl ◽  
Anil Shaji ◽  
Michael G. Snyder
Keyword(s):  
Bell States ◽  
Quantum Waveguide

The Role of Impurity Scattering in the Quantum Waveguide

1993 ◽  
Vol 175 (2) ◽  
pp. 339-348
Author(s):  
J. M. Mao ◽  
Y. Huang ◽  
J. M. Zhou
Keyword(s):  
Impurity Scattering ◽  
Quantum Waveguide

The continuous spectrum of hydrogen

1927 ◽  
Vol 203 (5) ◽  
pp. 737-738
Author(s):  
G.F.S.
Keyword(s):  
Continuous Spectrum

Electron transport across one-dimensional modulated superlattices in a quantum waveguide in magnetic fields

2000 ◽  
Vol 88 (1) ◽  
pp. 300-308 ◽  
Author(s):  
Ben-Yuan Gu ◽  
Yan Zhang ◽  
Xue-Hua Wang
Keyword(s):  
Electron Transport ◽  
Magnetic Fields ◽  
Quantum Waveguide ◽  
One Dimensional
Sign in / Sign up

Export Citation Format

Share Document