scholarly journals Formal derivation of the Laughlin function and its generalization for other topological phases of FQHE

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Janusz E. Jacak

AbstractUsing the braid symmetry we demonstrate the derivation of the Laughlin function for the main hierarchy 1/q of FQHE in the lowest Landau level of two-dimensional electron system with a mathematical rigour. This proves that the derivation of Laughlin function unavoidably requires some topological elements and cannot be completed within a local quantum mechanics, i.e., without global topological constraints imposed. The method shows the way for the generalization of this function onto other fractions from the general quantum Hall hierarchy. A generalization of the Laughlin function is here formulated.

1992 ◽  
Vol 46 (16) ◽  
pp. 10468-10471 ◽  
Author(s):  
H. W. Jiang ◽  
L. W. Engel ◽  
D. C. Tsui ◽  
H. L. Stormer ◽  
L. N. Pfeiffer ◽  
...  

2004 ◽  
Vol 22 (1-3) ◽  
pp. 181-184 ◽  
Author(s):  
M. Grayson ◽  
D. Schuh ◽  
M. Bichler ◽  
M. Huber ◽  
G. Abstreiter ◽  
...  

SPIN ◽  
2015 ◽  
Vol 05 (03) ◽  
pp. 1530003
Author(s):  
R. Cangas ◽  
M. A. Hidalgo

In this paper, we review the contribution of the Rashba spin–orbit coupling to the magnetoconduction of a two-dimensional electron system (2DES) confined in an inversion layer under quantum Hall regime (low temperature and low defects and impurities). The study is based on a semi-classical model for the magnetoconductivities of the 2DES. This model reproduces the measurements of the Shubnikov-de Haas (SdH) oscillations obtained in systems confined in III–V heterostructures, and also the quantum Hall magnetoconductivity (magnetoresistivity). We also discuss the Rashba and Zeeman competition and its effect on the magnetoconductivity.


2014 ◽  
Vol 105 (1) ◽  
pp. 012106 ◽  
Author(s):  
Shun-Tsung Lo ◽  
Chang-Shun Hsu ◽  
Y. M. Lin ◽  
S.-D. Lin ◽  
C. P. Lee ◽  
...  

2007 ◽  
Vol 21 (08n09) ◽  
pp. 1388-1397 ◽  
Author(s):  
M. SHAYEGAN ◽  
E. P. DE POORTERE ◽  
O. GUNAWAN ◽  
Y. P. SHKOLNIKOV ◽  
E. TUTUC ◽  
...  

Two-dimensional electrons in an AlAs quantum well occupy multiple conduction-band minima at the X-points of the Brillouin zone. These valleys have large effective mass and g-factor compared to the standard GaAs electrons, and are highly anisotropic. With proper choice of well width and by applying symmetry-breaking strain in the plane, one can control the occupation of different valleys thus rendering a system with tuneable effective mass, g-factor, Fermi contour anisotropy, and valley degeneracy. Here we review some of the rich physics that this system has allowed us to explore.


2010 ◽  
Vol 96 (21) ◽  
pp. 212102 ◽  
Author(s):  
L. H. Ho ◽  
L. J. Taskinen ◽  
A. P. Micolich ◽  
A. R. Hamilton ◽  
P. Atkinson ◽  
...  

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