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It is argued that the recently observed Fermi liquids in strongly interacting ultracold Fermi gases are adiabatically connected to a projected Fermi gas. This conclusion is reached by constructing a set of Jastrow wavefunctions, following…

Quantum Gases · Physics 2011-04-22 M. A. Cazalilla

This chapter appears in "Fractional Quantum Hall Effects: New Development," edited by B. I. Halperin and J. K. Jain (World Scientific, 2020). The chapter begins with a primer on composite fermions, and then reviews three directions that…

Strongly Correlated Electrons · Physics 2020-11-30 J. K. Jain

Fractional Chern insulators (FCI) were proposed theoretically about a decade ago. These exotic states of matter are fractional quantum Hall states realized when a nearly flat Chern band is partially filled, even in the absence of an…

Strongly Correlated Electrons · Physics 2023-12-12 Xiaodong Hu , Di Xiao , Ying Ran

We establish a one-to-one correspondance between the ''composite particles'' with $N$ particles and the Young tableaux with at most $N$ rows. We apply this correspondance to the models of Calogero-Sutherland and Ruijsenaars-Schneider and we…

Condensed Matter · Physics 2009-10-31 M. C. Bergère

The reduction of the energy gap due to Landau level mixing, characterized by the dimensionless parameter $\lambda = (e^2/\epsilon l_0)/\hbar\omega_c$, has been calculated by variational Monte Carlo for the fractional quantum Hall effect at…

Condensed Matter · Physics 2009-10-28 V. Melik-Alaverdian , N. E. Bonesteel

The U(N) Maxwell-Chern-Simons matrix gauge theory is proposed as an extension of Susskind's noncommutative approach. The theory describes D0-branes, nonrelativistic particles with matrix coordinates and gauge symmetry, that realize a matrix…

High Energy Physics - Theory · Physics 2009-11-11 Andrea Cappelli , Ivan D. Rodriguez

We develop a field theory for a partially filled Landau level based on composite fermions with a finite vortex core, whose mean-field states are exactly those described by well-tested trial wave functions. Despite non-orthogonality of free…

Condensed Matter · Physics 2007-05-23 Yong-Shi Wu , Yue Yu

We develop a theory for the pseudorelativistic fractional quantum Hall effect in graphene, which is based on a multicomponent abelian Chern-Simons theory in the fermionic functional integral approach. Calculations are performed in the…

Mesoscale and Nanoscale Physics · Physics 2018-03-21 Christian Fräßdorf

Certain fractional quantum Hall wavefunctions -- particularly including the Laughlin, Moore-Read, and Read-Rezayi wavefunctions -- have special structure that makes them amenable to analysis using an exeptionally wide range of techniques…

Strongly Correlated Electrons · Physics 2021-07-02 Steven H. Simon

Some recently observed fractional quantum Hall states are not easily explained in standard hierarchy/composite fermion schemes. This paper gives a brief introduction to some wavefunctions involving non-Abelian Read-Rezayi states with…

Strongly Correlated Electrons · Physics 2009-07-10 Th. Jolicoeur

We observe geometric resonance features of composite fermions on the flanks of the even denominator {\nu} = 1/2 fractional quantum Hall state in high-mobility two-dimensional electron and hole systems confined to wide GaAs quantum wells and…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 M. A. Mueed , D. Kamburov , S. Hasdemir , M. Shayegan , L. N. Pfeiffer , K. W. West , K. W. Baldwin

A composite fermion edge state theory of current fluctuations, fractional quasiparticle charge and Johnson-Nyquist noise in the fractional quantum Hall regime is presented. It is shown that composite fermion current fluctuations and the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 George Kirczenow

We investigate the 1/3 fractional quantum Hall state with one and two quasiparticle excitations. It is shown that the quasiparticle excitations are best described as excited composite fermions occupying higher composite-fermion quasi-Landau…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Gun Sang Jeon , Jainendra K. Jain

It is demonstrated that an understanding of the 5/2 fractional quantum Hall effect can be achieved within the composite fermion theory without appealing to the Pfaffian wave function. The residual interaction between composite fermions…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Csaba Toke , Jainendra K. Jain

We theoretically investigate the nature of the state at quarter filled lowest Landau level and predict that, as the quantum well width is increased, a transition occurs from the composite fermion Fermi sea into a novel non-Abelian…

Strongly Correlated Electrons · Physics 2019-07-10 William N. Faugno , Ajit C. Balram , Maissam Barkeshli , Jainendra K. Jain

We show that the entanglement spectrum associated with a certain class of strongly correlated many-body states --- the wave functions proposed by Laughlin and Jain to describe the fractional quantum Hall effect --- can be very well…

Strongly Correlated Electrons · Physics 2016-08-08 Simon C. Davenport , Iván D. Rodríguez , J. K. Slingerland , Steven H. Simon

Two microscopic theories have been proposed for the explanation of the fractional quantum Hall effect, namely the Haldane-Halperin hierarchy theory and the composite fermion theory. Contradictory statements have been made regarding the…

Strongly Correlated Electrons · Physics 2014-09-30 Jainendra K. Jain

The calculation of pair correlations and density profiles of quasiholes are routine steps in the study of proposed fractional quantum Hall states. Nevertheless, the field has not adopted a standard way to present the results of such…

Strongly Correlated Electrons · Physics 2023-06-07 Jørgen Fulsebakke , Mikael Fremling , Niall Moran , J. K. Slingerland

The recent proposal of non-Abelian boson-fermion dualities in 2+1 dimensions, which morally relate $U(k)_N$ to $SU(N)_{-k}$ Chern-Simons-matter theories, presents a new platform for exploring the landscape of non-Abelian quantum Hall states…

Strongly Correlated Electrons · Physics 2020-12-03 Hart Goldman , Ramanjit Sohal , Eduardo Fradkin

We proof the non-renormalization of the Hall viscosity by Coulomb interactions for integer and fractional quantum Hall Jain states building on previous results obtained for the Hall conductivity. We employ Wigner-Weyl calculus in order to…

Mesoscale and Nanoscale Physics · Physics 2026-03-31 Maik Selch