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Related papers: A Hafnian PH-Pfaffian State for 5/2 Quantum Hall E…

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Motivated by recent experiments that reveal expansive fractional quantum Hall states in the $n=1$ graphene Landau level and suggest a nontrivial role of the spin degree of freedom [Amet {\em et al.}, Nat. Common. {\bf 6}, 5838 (2014)], we…

Strongly Correlated Electrons · Physics 2018-02-20 Ajit C. Balram , Csaba Tőke , A. Wójs , J. K. Jain

We present an approach to the computation of the non-Abelian statistics of quasiholes in quantum Hall states, such as the Pfaffian state, whose wavefunctions are related to the conformal blocks of minimal model conformal field theories. We…

Mesoscale and Nanoscale Physics · Physics 2008-07-08 Victor Gurarie , Chetan Nayak

Recent variational studies have demonstrated that the strongly correlated ground states of the fractional quantum Hall (FQH) effect can be captured using machine learning approaches starting from no prior knowledge of the underlying…

Strongly Correlated Electrons · Physics 2025-12-02 Mytraya Gattu

The fractional quantum Hall effect (FQHE) at filling 5/2, which is usually understood as a $p$-wave paired state of underlying quasiparticles - composite fermions, transforms into a nematic phase under pressure \cite{csathy0, csathy}. A…

Strongly Correlated Electrons · Physics 2025-11-26 M. V. Milovanović

A two-dimensional electron system exposed to a strong magnetic field produces a plethora of strongly interacting fractional quantum Hall (FQH) states, the complex topological orders of which are revealed through exotic emergent particles,…

Mesoscale and Nanoscale Physics · Physics 2025-07-29 Ke Huang , Ajit C. Balram , Hailong Fu , Chengqi Guo , Kenji Watanabe , Takashi Taniguchi , Jainendra K. Jain , Jun Zhu

We analyse various microscopic properties of the nematic fractional quantum Hall effect (FQHN) in the thermodynamic limit, and present necessary conditions required of the microscopic Hamiltonians for the nematic FQHE to be robust.…

Strongly Correlated Electrons · Physics 2020-09-09 Bo Yang

Strongly interacting topological matter exhibits fundamentally new phenomena with potential applications in quantum information technology. Emblematic instances are fractional quantum Hall states, where the interplay of magnetic fields and…

The nu=5/2 fractional quantum Hall effect state has attracted great interest recently, both as an arena to explore the physics of non-Abelian quasiparticle excitations, and as a possible architecture for topological quantum information…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Lachezar S. Georgiev , Michael R. Geller

The Pfaffian state is an attractive candidate for the observed quantized Hall plateau at Landau level filling fraction $\nu=5/2$. This is particularly intriguing because this state has unusual topological properties, including quasiparticle…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Sankar Das Sarma , Michael Freedman , Chetan Nayak

It was recently pointed out that Halperin's 113 topological order explains the transport experiments in the quantum Hall liquid at filling factor $\nu=5/2$. The 113 order, however, cannot be easily distinguished from other likely…

Mesoscale and Nanoscale Physics · Physics 2015-03-04 Guang Yang

In a recent proposal of the half-filled Landau level, the composite fermions are taken to be Dirac particles and particle-hole symmetric. Cooper pairing of these composite fermions in different angular momentum channels, $\ell$, can give…

Strongly Correlated Electrons · Physics 2016-10-18 Zhiqiang Wang , Sudip Chakravarty

It has long been puzzling that fractional quantum Hall states in the first excited Landau level (1LL) often differ significantly from their counterparts in the lowest Landau level. We show that the dispersion of composite fermions (CFs) is…

Mesoscale and Nanoscale Physics · Physics 2025-02-25 Hao Jin , Junren Shi

Bilayer graphene has been predicted to give unprecedented tunability of the electron-electron interaction with the help of external parameters, allowing one to stabilize different fractional quantum Hall states. Recent experimental works…

Strongly Correlated Electrons · Physics 2015-05-15 Kyrylo Snizhko , Vadim Cheianov , Steven H. Simon

Chern insulators are band insulators exhibiting a nonzero Hall conductance but preserving the lattice translational symmetry. We conclusively show that a partially filled Chern insulator at 1/3 filling exhibits a fractional quantum Hall…

Strongly Correlated Electrons · Physics 2015-03-19 N. Regnault , B. Andrei Bernevig

Among the extensive studies of fractional quantum anomalous Hall (FQAH) states, there recently appears a growing interest in the topological states with coexisting charge density wave (CDW) orders. Such states are referred to as Hall…

Strongly Correlated Electrons · Physics 2025-09-03 Hongyu Lu , Han-Qing Wu , Bin-Bin Chen , Wang Yao , Zi Yang Meng

I furnish details of the hamiltonian theory of the FQHE developed with Murthy for the infrared, which I subsequently extended to all distances and apply it to Jain fractions \nu = p/(2ps + 1). The explicit operator description in terms of…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 R. Shankar

The fractional quantum Hall effect is a well-known demonstration of strongly correlated topological phases in two dimensions. However, the extension of this phenomenon into a three-dimensional context has yet to be achieved. Recently, the…

Strongly Correlated Electrons · Physics 2025-01-07 Jiong-Hao Wang , Yan-Bin Yang , Yong Xu

The proposed $\mathcal{A}$ phase and the corresponding trial wavefunction proposed by Das \emph{et al.} (PRL 131, 056202, 2023) for 5/2 state are argued to describe the fractional quantum Hall liquid state rather than a phase separated or…

Mesoscale and Nanoscale Physics · Physics 2024-01-23 Sudipto Das , Sahana Das , Sudhansu S. Mandal

In several recent works it has been proposed that, due to disorder, the experimentally observed nu=5/2 quantum Hall state could be microscopically composed of domains of Pfaffian order along with domains of AntiPfaffian order. We…

Mesoscale and Nanoscale Physics · Physics 2020-01-22 Steven H. Simon , Matteo Ippoliti , Michael P. Zaletel , Edward H. Rezayi

Recent theories suggest that the excitations of certain quantum Hall states may have exotic braiding statistics which could be used to build topological quantum gates. This has prompted an experimental push to study such states using…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 J. B. Miller , I. P. Radu , D. M. Zumbuhl , E. M. Levenson-Falk , M. A. Kastner , C. M. Marcus , L. N. Pfeiffer , K. W. West
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