Exact results for a quantum Hall state with broken rotational symmetry
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physics and Chemistry of Solids"
DOI: 10.1016/j.jpcs.2019.02.021
Abstract: Abstract The most robust fractional quantum Hall state in a strongly correlated two-dimensional system of electrons occurs at one-third filling factor of the lowest Landau level. This state is characterized as an isotropic quantum liquid… read more here.
Keywords: broken rotational; rotational symmetry; quantum hall; symmetry ... See more keywords
Self-dual ν=1 bosonic quantum Hall state in mixed-dimensional QED
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.235150
Abstract: We consider a (2+1) dimensional Wilson-Fisher boson coupled to a (3+1) dimensional U(1) gauge field. This theory possesses a strong-weak duality in terms of the coupling constant e, and is self-dual at a particular value… read more here.
Keywords: bosonic quantum; quantum hall; theory; self dual ... See more keywords
Bandwidth-controlled quantum phase transition between an easy-plane quantum spin Hall state and an s -wave superconductor
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.107.155107
Abstract: The quantum spin Hall state can be understood in terms of spontaneous O(3) symmetry breaking. Topological skyrmion configurations of the O(3) order parameter vector carry a charge 2e, and as shown previously, when they condense,… read more here.
Keywords: hall state; quantum spin; quantum; easy plane ... See more keywords
Observation of an anomalous density-dependent energy gap of the ν=5/2 fractional quantum Hall state in the low-density regime
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.085105
Abstract: We have studied the $\nu=5/2$ fractional quantum Hall state in a density-tunable sample at extremely low electron densities. For the densities accessed in our experiment, the Landau level mixing parameter $\kappa$ spans the $2.52 read more here.
Keywords: hall state; quantum hall; fractional quantum; density ... See more keywords
Magnetic extension as an efficient method for realizing the quantum anomalous hall state in topological insulators
Sign Up to like & getrecommendations! Published in 2017 at "JETP Letters"
DOI: 10.1134/s0021364017050113
Abstract: A new efficient method is proposed for inducing magnetism on the surface of a topological insulator through the deposition of a thin film of an isostructural magnetic insulator whose atomic composition is maximally close to… read more here.
Keywords: state; efficient method; anomalous hall; quantum anomalous ... See more keywords