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pro vyhledávání: '"Nguyen, Dung X."'
Autor:
Wagner, Glenn, Nguyen, Dung X.
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 $\nu=\frac{1}{4}+\frac{3}{4}$ with interlayer separation $d$ can be well-d
Externí odkaz:
http://arxiv.org/abs/2407.07938
We introduce a new variational wavefunction for a quantum Hall bilayer at total filling $\nu = 1$, which is based on $s$-wave BCS pairing between composite-fermion electrons in one layer and composite-fermion holes in the other. We compute the overla
Externí odkaz:
http://arxiv.org/abs/2106.00690
Publikováno v:
Phys. Rev. B 101, 245438 (2020)
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 thermal conductivity and thermopower for Bernal-stacked multilayers with
Externí odkaz:
http://arxiv.org/abs/2003.12070
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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 works have indicated that electronic excitations in strained graphene rea
Externí odkaz:
http://arxiv.org/abs/1911.02028
Publikováno v:
Phys. Rev. B 100, 245111 (2019)
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 been studied experimentally in electron quantum optics in the context o
Externí odkaz:
http://arxiv.org/abs/1908.05658
Publikováno v:
Phys. Rev. Lett. 124, 026601 (2020)
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 prior discussions, that phonon scattering is crucial even at temperatur
Externí odkaz:
http://arxiv.org/abs/1905.09835
Publikováno v:
Phys. Rev. B 101, 035117 (2020)
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 occupation approximately follows the usual Fermi-Dirac distribution. In this pa
Externí odkaz:
http://arxiv.org/abs/1901.07039
Publikováno v:
Phys. Rev. Lett. 122, 127701 (2019)
We discuss a theoretical model of an on-demand single-particle emitter that employs a quantum dot, attached to an integer or fractional quantum Hall edge state. Via an exact mapping of the model onto the spin-boson problem we show that Coulomb intera
Externí odkaz:
http://arxiv.org/abs/1808.08240
Publikováno v:
JHEP 01 (2016) 021
We consider gapped fractional quantum Hall states on the lowest Landau level when the Coulomb energy is much smaller than the cyclotron energy. We introduce two spectral densities, \rho_T(\omega) and \bar \rho_T(\omega), which are proportional to the
Externí odkaz:
http://arxiv.org/abs/1309.2638