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Structures for Interacting Composite Fermions: Stripes, Bubbles, and Fractional Quantum Hall Effect [PDF]

open access: yes, 2002
Much of the present day qualitative phenomenology of the fractional quantum Hall effect can be understood by neglecting the interactions between composite fermions altogether.
A. Wojs   +44 more
core   +1 more source

Fractional quantum Hall effect at ν=2+4/9

open access: yesPhysical Review Research, 2020
Motivated by two independent experiments revealing a resistance minimum at the Landau level (LL) filling factor ν=2+4/9, characteristic of the fractional quantum Hall effect (FQHE) and suggesting electron condensation into a yet unknown quantum liquid ...
Ajit C. Balram, A. Wójs
doaj   +1 more source

Quantum anomalous semimetals

open access: yesnpj Quantum Materials, 2022
The topological states of matter and topological materials have been attracting extensive interests as one of the frontier topics in condensed matter physics and materials science since the discovery of quantum Hall effect in 1980s.
Bo Fu   +4 more
doaj   +1 more source

The Influence of Noise on the Exact Solutions of the Stochastic Fractional-Space Chiral Nonlinear Schrödinger Equation

open access: yesFractal and Fractional, 2021
In this paper, we consider the stochastic fractional-space Chiral nonlinear Schrödinger equation (S-FS-CNSE) derived via multiplicative noise. We obtain the exact solutions of the S-FS-CNSE by using the Riccati equation method. The obtained solutions are
Wael W. Mohammed   +4 more
doaj   +1 more source

The stability of the fractional quantum Hall effect in topological insulators

open access: yes, 2011
With the recent observation of graphene-like Landau levels at the surface of topological insulators, the possibility of fractional quantum Hall effect, which is a fundamental signature of strong correlations, has become of interest. Some experiments have
Analytis   +25 more
core   +1 more source

Fractional Quantum Hall Hierarchy and the Second Landau Level [PDF]

open access: yes, 2007
We generalize the fractional quantum Hall hierarchy picture to apply to arbitrary, possibly non-Abelian, fractional quantum Hall states. Applying this to the nu = 5/2 Moore-Read state, we construct new explicit trial wavefunctions to describe the ...
J. K. Jain   +2 more
core   +4 more sources

An unified topological representation theory of the integral and fractional quantum Hall fluid by folding the membrane of quantum electron fluid

open access: yesNuclear Physics B
How to understand the integral and fractional quantum Hall resistivity in an unified mathematical physics theory remained an unsolved problem in the past four decades.
Tieyan Si
doaj   +1 more source

Fragility of the fractional quantum spin Hall effect in quantum gases

open access: yesNew Journal of Physics, 2014
We consider the effect of contact interaction in a prototypical quantum spin Hall system of pseudo-spin-1/2 particles. A strong effective magnetic field with opposite directions for the two spin states restricts two-dimensional particle motion to the ...
O Fialko, J Brand, U Zülicke
doaj   +1 more source

Elementary theory of quantum Hall effect [PDF]

open access: yesMaejo International Journal of Science and Technology, 2008
The Hall effect is the generation of a current perpendicular to both the direction of the applied electric as well as magnetic field in a metal or in a semiconductor. It is used to determine the concentration of electrons.
Keshav N. Shrivastava
doaj  

Impact of bulk-edge coupling on observation of anyonic braiding statistics in quantum Hall interferometers

open access: yesNature Communications, 2022
Quantum Hall interferometers have proven to be a useful platform for the study of fractional statistics. Here, the authors experimentally study the effect of Coulomb interactions between bulk and edge charges on the interferometer behavior, validating ...
J. Nakamura   +3 more
doaj   +1 more source

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