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The low energy physics of the fractional Hall liquid is described in terms quasiparticles that are qualitatively distinct from electrons. We show, however, that a long-lived electron-like quasiparticle also exists in the excitation…

介观与纳米尺度物理 · 物理学 2009-11-10 Jainendra K. Jain , Michael R. Peterson

Effect of interlayer tunneling in the double-layer fractional quantum Hall system at the total Landau level filling of $\nu=1/m$ ($m$: odd integer) is analyzed with the composite-fermion approach in which the flux attachment is directly…

凝聚态物理 · 物理学 2009-10-28 T. Nakajima , H. Aoki

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 construct effective $\mathrm{U}(2)$ Chern-Simons-Ginzburg-Landau theories for Abelian and non-Abelian fractional quantum Hall hierarchies for those which had previously been described only through categorical data or trial wavefunctions.…

强关联电子 · 物理学 2026-04-13 Taegon Lee , Gil Young Cho , Donghae Seo

We demonstrate the experimental feasibility of incompressible fractional quantum Hall-like states in ultra-cold two dimensional rapidly rotating dipolar Fermi gases. In particular, we argue that the state of the system at filling fraction…

介观与纳米尺度物理 · 物理学 2009-11-10 M. A. Baranov , Klaus Osterloh , M. Lewenstein

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

An important development in the field of the fractional quantum Hall effect has been the proposal that the 5/2 state observed in the Landau level with orbital index $n = 1$ of two dimensional electrons in a GaAs quantum well originates from…

介观与纳米尺度物理 · 物理学 2019-10-25 Youngwook Kim , Ajit C. Balram , Takashi Taniguchi , Kenji Watanabe , Jainendra K. Jain , Jurgen H. Smet

Exact diagonalization of a two-dimensional electron gas in a strong magnetic field in the disk geometry shows that there exists a filling factor range in the second Landau level where the states significantly differ from those in the lowest…

介观与纳米尺度物理 · 物理学 2010-06-24 Csaba Toke , Michael R. Peterson , Gun Sang Jeon , Jainendra K. Jain

Some fractional quantum Hall states observed in experiments may be described by first-quantized wavefunctions with special clustering properties like the Moore-Read Pfaffian for filling factor nu = 5/2. This wavefunction has been…

介观与纳米尺度物理 · 物理学 2016-08-14 M. V. Milovanović , Th. Jolicœur , I. Vidanović

Fractional quantum Hall states at a half-filled Landau level are believed to carry an integer number $\mathcal{C}$ of chiral Majorana edge modes, reflected in their thermal Hall conductivity. We show that this number determines the primary…

介观与纳米尺度物理 · 物理学 2024-12-31 Evgenii Zheltonozhskii , Ady Stern , Netanel H. Lindner

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 find that a large number of parameters are used to create the correct fractions. The parameters used are, \nu, 1-\nu,\nu^*,\bar n, n, p and \bar p. Therefore, the predicted fractions need not be having the correct origin. The wave…

介观与纳米尺度物理 · 物理学 2007-05-23 Keshav N. Shrivastava

By applying the Dirac quantization method, we build the constraint that all electrons are in the lowest Landau level into the Chern-Simons field theory approach for the fractional quantum Hall system and show that the constraint can be…

凝聚态物理 · 物理学 2007-05-23 Zhong-Shui Ma , Zhao-Bin Su

We consider a two-component quantum Hall system within a Landau-Ginzburg theory with two Chern-Simons gauge fields. From this theory we derive a sigma model covariantly coupled to one Chern-Simons field and find mean field solutions that…

凝聚态物理 · 物理学 2009-10-28 T. H. Hansson , A. Karlhede , J. M. Leinaas

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…

介观与纳米尺度物理 · 物理学 2016-08-31 Gun Sang Jeon , Jainendra K. Jain

We consider non-unitary similarity transformation, interconnecting the $W_{1+\infty}$ algebra representations for the fractional $\nu=\frac{1}{2p+1}$ and integer $\nu=1$ filling fractions. This transformation corresponds to the introduction…

高能物理 - 理论 · 物理学 2008-02-03 M. Eliashvili

A simple and physically transparent magnetoelasticity theory is proposed to describe linear dynamics of incompressible fractional quantum Hall states. The theory manifestly satisfies the Kohn theorem and the $f$-sum rule, and predicts a…

介观与纳米尺度物理 · 物理学 2007-05-23 I. V. Tokatly

We argue that a correlated fluid of electrons and holes can exhibit a fractional quantum Hall effect at zero magnetic field analogous to the Laughlin state at filling $1/m$. We introduce a variant of the Laughlin wavefunction for electrons…

强关联电子 · 物理学 2018-09-19 Yichen Hu , Jörn W. F. Venderbos , C. L. Kane

According to the composite fermion theory, the interacting electron system at filling factor $\nu$ is equivalent to the non-interacting composite fermion system at $\nu^*=\nu/(1-2m\nu)$, which in turn is related to the non-interacting…

凝聚态物理 · 物理学 2016-08-31 X. G. Wu , J. K. Jain

We introduce an attention-based fermionic neural network (FNN) to variationally solve the problem of two-dimensional Coulomb electron gas in magnetic fields, a canonical platform for fractional quantum Hall (FQH) liquids, Wigner crystals…

强关联电子 · 物理学 2025-05-23 Yi Teng , David D. Dai , Liang Fu