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The fractional quantum Hall effect, being one of the most studied phenomena in condensed matter physics during the past thirty years, has generated many groundbreaking new ideas and concepts. Very early on it was realized that the zoo of…

Strongly Correlated Electrons · Physics 2017-07-07 T. H. Hansson , M. Hermanns , S. H. Simon , S. F. Viefers

We derive a microscopic model describing the low-lying edge excitations in the fractional quantum Hall liquid with $\nu=\frac{\nu^*} {\tilde\phi\nu^*+1}$. For $\nu^*>0$, it is found that the composite fermion model reduces to an SU$(\nu^*)$…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Yue Yu

We derive the hamiltonian and canonical structure for arbitrary deformations of a phase space (quantum Hall) droplet on a general manifold of any dimension. The derivation is based on a transformation that decouples the Casimirs of the…

High Energy Physics - Theory · Physics 2010-04-05 Alexios P. Polychronakos

We report on an effective gauge theory of double-layer quantum Hall systems, that is constructed via bosonization from the response of incompressible states without referring to composite bosons and fermions. It is pointed out that…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 K. Shizuya

Atomic vapors can be prepared and manipulated at very low densities and temperatures. When they are rotating, they can reach a quantum Hall regime in which there should be manifestations of the fractional quantum Hall effect. We discuss the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 N. Regnault , Th. Jolicoeur

Motivated by the quantum hall effect, we study N two dimensional interacting fermions in a large magnetic field limit. We work in a bounded domain, ensuring finite degeneracy of the Landau levels. In our regime, several levels are fully…

Mathematical Physics · Physics 2024-11-22 Denis Périce

When the quantum Hall effect occurs in a two-dimensional electron gas, all low-energy elementary excitations are localized near the system edge. The edge acts in many ways like a one-dimensional ring of electrons, except that a finite…

Condensed Matter · Physics 2007-05-23 A. H. MacDonald

These pedagogical lecture notes present a general introduction to most aspects of the integer and fractional quantum Hall effects. This is followed by an extensive discussion of quantum Hall ferromagnetism, both for spins in single-layer…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Steven M. Girvin

We present a Chern-Simons matrix model describing the fractional quantum Hall effect on the two-sphere. We demonstrate the equivalence of our proposal to particular restrictions of the Calogero-Sutherland model, reproduce the quantum states…

High Energy Physics - Theory · Physics 2009-11-11 Bogdan Morariu , Alexios P. Polychronakos

We derive an effective hamiltonian in the Lowest Landau Level (LLL) that incorporates the effects of Landau-level mixing to all higher Landau levels to leading order in the ratio of interaction energy to the cyclotron energy. We then…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Ganpathy Murthy , R. Shankar

An atomic analogue of Landau quantization based on the Aharonov-Casher (AC) interaction is developed. The effect provides a first step towards an atomic quantum Hall system using electric fields, which may be realized in a Bose-Einstein…

Quantum Physics · Physics 2009-11-07 Marie Ericsson , Erik Sjoqvist

We use the dynamical structure factors of the quantum Hall states at $\nu=1/3$ and $\nu=1/2$ in the lowest Landau level to study their excitation spectrum. Using the density matrix renormalization group in combination with the…

Strongly Correlated Electrons · Physics 2022-09-07 Prashant Kumar , F. D. M. Haldane

Recent theoretical works have demonstrated various robust Abelian and non-Abelian fractional topological phases in lattice models with topological flat bands carrying Chern number C=1. Here we study hard-core bosons and interacting fermions…

Strongly Correlated Electrons · Physics 2012-11-07 Yi-Fei Wang , Hong Yao , Chang-De Gong , D. N. Sheng

It is shown, that a spectrum generating algebras and wave functions for the integral and fractional quantum Hall effect are related by the non-unitary similarity transformation. This transformation corresponds to the introduction of the…

High Energy Physics - Theory · Physics 2007-05-23 M. Eliashvili

We present a Landau-Ginzburg theory for a fractional quantized Hall nematic state and the transition to it from an isotropic fractional quantum Hall state. This justifies Lifshitz-Chern-Simons theory -- which is shown to be its dual -- on a…

Strongly Correlated Electrons · Physics 2013-05-29 Michael Mulligan , Chetan Nayak , Shamit Kachru

We report low temperature electronic transport results on the fractional quantum Hall effect of composite fermions at Landau level filling nu = 4/11 in a very high mobility and low density sample. Measurements were carried out at…

Mesoscale and Nanoscale Physics · Physics 2015-01-14 W. Pan , K. W. Baldwin , K. W. West , L. N. Pfeiffer , D. C. Tsui

The spectrum of charged particles in translation-invariant systems in a magnetic field is characterized by the Landau levels, which play a fundamental role in the thermodynamic and transport properties of solids. The topological nature and…

Mesoscale and Nanoscale Physics · Physics 2023-10-02 Isac Sahlberg , Moein N. Ivaki , Kim Pöyhönen , Teemu Ojanen

We consider spin-polarized electrons in a single Landau level on a cylinder as the circumference of the cylinder goes to infinity. This gives a model of interacting electrons on a circle where the momenta of the particles are restricted and…

Mesoscale and Nanoscale Physics · Physics 2009-04-21 E. J. Bergholtz , A. Karlhede

The quantum Hall effect was originally observed in a two-dimensional electron gas forming Landau levels when exposed to a strong perpendicular magnetic field and was later generalized to Chern insulators without net magnetization. Here,…

Mesoscale and Nanoscale Physics · Physics 2025-11-04 Benjamin Michen , Jan Carl Budich

Interacting electrons confined to their lowest Landau level in a high magnetic field can form a variety of correlated states, some of which manifest themselves in a Hall effect. Although such states have been predicted to occur in three…

Strongly Correlated Electrons · Physics 2023-06-02 S. Galeski , X. Zhao , R. Wawrzyńczak , T. Meng , T. Förster , P. M. Lozano , S. Honnali , N. Lamba , T. Ehmcke , A. Markou , Q. Li , G. Gu , W. Zhu , J. Wosnitza , C. Felser , G. F. Chen , J. Gooth