100 citations · 749 across the 33 of their papers we have counts for
33 papers
Sum rules and density-wave modes in spin-singlet fractional quantum Hall fluids
Ritajit Kundu, Rakesh K. Dora, Dung Xuan Nguyen +1
Fractional quantum Hall (FQH) states are prototypical examples of strongly interacting topologically ordered systems. In this work, we obtain thermodynamic fits on the plane for th…
Spin of fractional quantum Hall neutral modes and "missing states" on a sphere
Dung Xuan Nguyen, Dam Thanh Son
A low-energy neutral quasiparticle in a fractional quantum Hall system appears in the latter's energy spectrum on a sphere as a series of many-body excited states labeled by the an…
Successive electron-vortex binding in quantum Hall bilayers at
Glenn Wagner, Dung X. Nguyen
Electrons in a quantum Hall fluid can bind with an integer number of vortices to form composite fermions and composite bosons. We show that the quantum Hall bilayer at filling $ν=\…
On quantum melting of superfluid vortex crystals: from Lifshitz scalar to dual gravity
Dung Xuan Nguyen, Sergej Moroz
Despite a long history of studies of vortex crystals in rotating superfluids, their melting due to quantum fluctuations is poorly understood. Here we develop a fracton-elasticity d…
Gaining insights on anyon condensation and 1-form symmetry breaking across a topological phase transition in a deformed toric code model
Joe Huxford, Dung Xuan Nguyen, Yong Baek Kim
We examine the condensation and confinement mechanisms exhibited by a deformed toric code model proposed in [Castelnovo and Chamon, Phys. Rev. B, 2008]. The model describes both si…
Flux-induced midgap states between strain-engineered flat bands
Dung Xuan Nguyen, Jake Arkinstall, Henning Schomerus
Half-integer quantized flux vortices appear in honeycomb lattices when the signs of an odd number of couplings around a plaquette are inverted. We show that states trapped at these…
Noncommutative Field Theory of the Tkachenko Mode: Symmetries and Decay Rate
Yi-Hsien Du, Sergej Moroz, Dung Xuan Nguyen +1
We construct an effective field theory describing the collective Tkachenko oscillation mode of a vortex lattice in a two-dimensional rotating Bose-Einstein condensate in the long-w…
Supergravity model of the Haldane-Rezayi fractional quantum Hall state
Dung Xuan Nguyen, Kartik Prabhu, Ajit C. Balram +1
Supersymmetry and supergravity were invented in the 1970s to solve fundamental problems in high-energy physics. Even though neither of these ideas has yet been confirmed in high-en…
Band Inversion Flips the Winding of Bound States in the Continuum
Paul Bouteyre, Dung Xuan Nguyen, Loïc Malgrey +10
Bound states in the continuum (BICs) in photonic slabs and metasurfaces appear as polarization singularities in momentum space, characterized by an integer winding number. This win…
Fermi arc reconstruction in synthetic photonic lattice
D. -H. -Minh Nguyen, Chiara Devescovi, Dung Xuan Nguyen +2
The chiral surface states of Weyl semimetals have an open Fermi surface called Fermi arc. At the interface between two Weyl semimetals, these Fermi arcs are predicted to hybridize…
Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems
Dung Xuan Nguyen, F. D. M. Haldane, E. H. Rezayi +2
We study numerically the the charge neutral excitations (magnetorotons) in fractional quantum Hall systems, concentrating on the two Jain states near quarter filling, and $…
Topological Lasing from Thouless Pumping in Bilayer Photonic Crystal
D. -H. -Minh Nguyen, Dung Xuan Nguyen, Hai-Chau Nguyen +5
Topological lasing leverages concepts from topological physics to achieve single-mode light amplification within topological bandgaps, offering robustness against fabrication imper…
-wave paired composite-fermion electron-hole trial state for quantum Hall bilayers with
Glenn Wagner, Dung X. Nguyen, Steven H. Simon +1
We introduce a new variational wavefunction for a quantum Hall bilayer at total filling , which is based on -wave BCS pairing between composite-fermion electrons in one la…
Dirac Composite Fermion Theory of General Jain's Sequences
Dung Xuan Nguyen, Dam Thanh Son
We reconsider the composite fermion theory of general Jain's sequences with filling factor . We show that Goldman and Fradkin's proposal of a Dirac composite fermion…
Magic configurations in Moiré Superlattice of Bilayer Photonic crystal: Almost-Perfect Flatbands and Unconventional Localization
Dung Xuan Nguyen, Xavier Letartre, Emmanuel Drouard +3
We investigate the physics of photonic band structures of the moiré patterns that emerged when overlapping two uni-dimensional (1D) photonic crystal slabs with mismatched periods.…
Volume-preserving diffeomorphism as nonabelian higher-rank gauge symmetry
Yi-Hsien Du, Umang Mehta, Dung Xuan Nguyen +1
We propose nonabelian higher-rank gauge theories in 2+1D and 3+1D. The gauge group is constructed from the volume-preserving diffeomorphisms of space. We show that the intriguing p…
Probing the spin structure of the fractional quantum Hall magnetoroton with polarized Raman scattering
Dung Xuan Nguyen, Dam Thanh Son
Starting from the Luttinger model for the band structure of GaAs, we derive an effective theory that describes the coupling of the fractional quantum Hall (FQH) system with photons…
Electrodynamics of Thin Sheets of Twisted Material
Dung Xuan Nguyen, Dam Thanh Son
We construct a minimal theory describing the optical activity of a thin sheet of a twisted material, the simplest example of which is twisted bilayer graphene. We introduce the not…
Fracton-elasticity duality of two-dimensional superfluid vortex crystals: defect interactions and quantum melting
Dung Xuan Nguyen, Andrey Gromov, Sergej Moroz
Employing the fracton-elastic duality, we develop a low-energy effective theory of a zero-temperature vortex crystal in a two-dimensional bosonic superfluid which naturally incorpo…
Transport properties of multilayer graphene
Glenn Wagner, Dung X. Nguyen, Steven H. Simon
We apply the semi-classical quantum Boltzmann formalism for the computation of transport properties to multilayer graphene. We compute the electrical conductivity as well as the th…
Landau levels in curved space realized in strained graphene
Glenn Wagner, Fernando de Juan, Dung X. Nguyen
The quantum Hall effect in curved space has been the subject of many theoretical investigations in the past, but devising a physical system to observe this effect is hard. Many wor…
Driven quantum dot coupled to a fractional quantum Hall edge
Glenn Wagner, Dung X. Nguyen, Dmitry L. Kovrizhin +1
We study a model of a quantum dot coupled to a quantum Hall edge of the Laughlin state, taking into account short-range interactions between the dot and the edge. This system has b…
Transport in bilayer graphene near charge neutrality: Which scattering mechanisms are important?
Glenn Wagner, Dung X. Nguyen, Steven H. Simon
Using the semiclassical quantum Boltzmann equation (QBE), we numerically calculate the DC transport properties of bilayer graphene near charge neutrality. We find, in contrast to p…
Quantum Boltzmann equation for bilayer graphene
Dung X. Nguyen, Glenn Wagner, Steven H. Simon
A-B stacked bilayer graphene has massive electron and hole-like excitations with zero gap in the nearest-neighbor hopping approximation. In equilibrium, the quasiparticle occupatio…