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相关论文: The composite fermion model of quantum Hall effect…

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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…

介观与纳米尺度物理 · 物理学 2009-11-11 Csaba Toke , Jainendra K. Jain

We present a consistent description of the current distribution in the quantum Hall effect, based on two main ingredients: the location of the extended states and the distribution of the electric field. We show that the interaction between…

介观与纳米尺度物理 · 物理学 2007-05-23 K. Tsemekhman , V. Tsemekhman , C. Wexler

The dynamical Hall response in a correlated electronic system is analysed within the linear response theory for tight binding models. At $T=0$ the d.c. Hall constant for a single quasiparticle is expressed explicitly via the charge…

凝聚态物理 · 物理学 2009-10-28 Peter Prelovsek

We develop a Fermionic Chern-Simons (CS) theory for the fractional quantum Hall effect in monolayer graphene with SU(4) symmetry, arising from the spin and the valley degrees of freedom, which involves four distinct CS gauge fields. We…

强关联电子 · 物理学 2015-05-28 Sanhita Modak , Sudhansu S. Mandal , K. Sengupta

We give a universal description of the mesoscopic effects occurring in fractional quantum Hall disks due to the Aharonov-Bohm flux threading the system. The analysis is based on the exact treatment of the flux within the conformal field…

高能物理 - 理论 · 物理学 2007-05-23 Lachezar S. Georgiev

In this paper we propose a model of the fractional quantum Hall effect within conventional one-dimensional bosonization. It is shown that in this formalism the resulting bosonized fermion operator corresponding to momenta of Landau gauge…

强关联电子 · 物理学 2012-11-09 Vladimir A. Zyuzin

The formation of composite particles in the electron liquid under QHE conditions discussed by Jain in generalizing Laughlins many-particle state is considered by using a model for two-dimensional guiding center configurations. Describing…

介观与纳米尺度物理 · 物理学 2015-06-25 T. Asselmeyer , R. Keiper

The observed quantization of the Hall conductivity in graphene at high magnetic fields is explained as being due to the dynamically generated spatial modulation of either the electron spin or the density, as decided by the details of…

介观与纳米尺度物理 · 物理学 2007-05-23 Igor F. Herbut

We propose a generalized composite fermion (CF) theory for fractional Chern insulators (FCIs) by adapting the quantum mechanics approach of CFs. The theoretical framework naturally produces an effective CF Hamiltonian and a wavefunction…

强关联电子 · 物理学 2025-09-12 Hao Jin , Junren Shi

The energy gaps for the fractional quantum Hall effect at filling fractions 1/3, 1/5, and 1/7 have been calculated by variational Monte Carlo using Jain's composite fermion wave functions before and after projection onto the lowest Landau…

凝聚态物理 · 物理学 2009-10-22 N. E. Bonesteel

We present a composite fermion theory of tunneling into the edge of a compressible quantum Hall system. The tunneling conductance is non-ohmic, due to slow relaxation of electromagnetic and Chern-Simons field disturbances caused by the…

介观与纳米尺度物理 · 物理学 2008-04-12 A. V. Shytov , L. S. Levitov , B. I. Halperin

We present a generalization of the composite Fermion picture for a muticomponent quantum Hall plasma which contains particle with different effective charges. The model predicts very well the low-lying states of a $\nu=5/2$ quantum Hall…

强关联电子 · 物理学 2015-05-14 George E. Simion , John J. Quinn

We introduce a new generic model of a deformed Composite Fermion-Fermi Surface (CF-FS) for the Fractional Quantum Hall Effect near $/nu=1/2$ in the presence of a periodic density modulation. Our model permits us to explain recent Surface…

介观与纳米尺度物理 · 物理学 2009-10-31 Nataliya A. Zimbovskaya , Joseph L. Birman

We use Pseudo Quantum Electrodynamics to study massive (2+1)D Dirac systems interacting electromagnetically via a U(1) gauge field in (3+1)D. It was recently found in Ref. [1], that an interaction-induced Quantum Hall Effect (QHE) and…

强关联电子 · 物理学 2017-02-10 S. H. Kooi , N. Menezes , Van Sérgio Alves , C. Morais Smith

The low-lying excitations of a quantum Hall state on a disk geometry are edge excitations. Their dynamics is governed by a conformal field theory on the cylinder defined by the disk boundary and the time variable. We give a simple and…

高能物理 - 理论 · 物理学 2009-10-22 A. Cappelli , G. V. Dunne , C. A. Trugenberger , G. R. Zemba

We establish the quantum mechanics of composite fermions based on the dipole picture initially proposed by Read. It comprises three complimentary components: a wave equation for determining the wave functions of a composite fermion in ideal…

介观与纳米尺度物理 · 物理学 2024-06-24 Junren Shi

The quantum Hall effect under the influence of gravity and inertia is studied in a unified way. We make use of an algebraic approach, as opposed to an analytic approach. We examine how both the integer and the fractional quantum Hall…

介观与纳米尺度物理 · 物理学 2024-03-14 Alexandre Landry , Fayçal Hammad , Reza Saadati

Within the newly formulated composite fermion hierarchy the filling fraction of a spherical quantum Hall system is obtained when it can be expressed as an odd or even denominator fraction. A plot of $\nu\frac{2S}{N-1}$ as a function of $2S$…

介观与纳米尺度物理 · 物理学 2009-10-30 P. Sitko , J. J. Quinn , D. C. Marinescu

Recent experimental observations of the fractional quantum anomalous Hall effect in spin/valley polarized moir\'{e} systems call for a more expansive theoretical exploration of strongly correlated physics in partially filled topological…

强关联电子 · 物理学 2023-12-12 Nayan Myerson-Jain , Chao-Ming Jian , Cenke Xu

In a GaAs/AlGaAs quantum well of electron density 1x10^{11} cm^{-2} we observe a fractional quantum Hall effect (FQHE) at filling factors nu=4/11, and 5/13, and weaker states at nu=6/17, 4/13, 5/17 and 7/11. These sequences of fractions do…

介观与纳米尺度物理 · 物理学 2009-11-10 W. Pan , H. L. Stormer , D. C. Tsui , L. N. Pfeiffer , K. W. Baldwin , K. W. West