Unitary transformation approach to the exact solution for the singular oscillator

1996 ◽  
Vol 29 (11) ◽  
pp. 2833-2837 ◽  
Author(s):  
M Maamache
Keyword(s):  
Exact Solution ◽  
Unitary Transformation ◽  
Transformation Approach

scholarly journals Unitary transformation approach for the trapped ion dynamics

2000 ◽  
Vol 2 (1) ◽  
pp. 21-23 ◽  
Author(s):  
H Moya-Cessa ◽  
A Vidiella-Barranco ◽  
J A Roversi ◽  
S M Dutra
Keyword(s):  
Unitary Transformation ◽  
Ion Dynamics ◽  
Trapped Ion ◽  
Transformation Approach

scholarly journals Exact unitary transformation for Rashba Rings in magnetic and electric fields

2016 ◽  
Vol 30 (13) ◽  
pp. 1642016 ◽  
Author(s):  
A. Kregar ◽  
A. Ramšak
Keyword(s):  
Exact Solution ◽  
Electric Fields ◽  
Unitary Transformation ◽  
Energy Levels ◽  
Single Electron ◽  
Exact Results ◽  
Simple Formulation ◽  
Electron States ◽  
Rashba Coupling

An exact solution for single electron states on mesoscopic rings with the Rashba coupling and in the presence of external magnetic and electric fields is derived by means of a unitary transformation. The transformation maps the model to a bare ring, which gives the possibility of a very simple formulation of single or many electron problems. As an example some exact results for spin and energy levels are presented.

scholarly journals Quantum phase transitions in the Kondo-necklace model: perturbative continuous unitary transformation approach

2015 ◽  
Vol 27 (15) ◽  
pp. 155601
Author(s):  
S Hemmatiyan ◽  
M Rahimi Movassagh ◽  
N Ghassemi ◽  
M Kargarian ◽  
A T Rezakhani ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Unitary Transformation ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
Transformation Approach
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