2013
DOI: 10.1103/physrevb.87.085132
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Effective field theories for topological insulators by functional bosonization

Abstract: Effective field theories that describes the dynamics of a conserved U(1) current in terms of "hydrodynamic" degrees of freedom of topological phases in condensed matter are discussed in general dimension D = d+1 using the functional bosonization technique. For non-interacting topological insulators (superconductors) with a conserved U(1) charge and characterized by an integer topological invariant [more specifically, they are topological insulators in the complex symmetry classes (class A and AIII) and in the … Show more

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Cited by 60 publications
(92 citation statements)
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“…Based on both low energy effective theory approach and numerical results in a microscopic model of doped topological insulators, we propose two physical consequences of the anomaly, the chiral modes in magnetic vortices, and the magnon-plasmon coupling. An open question is whether it is possible to write down a topological effective field theory to characterize the transport properties of the Weyl semimetals, as in the topological insulators 5,16,37 . Since there are gapless fermions in Weyl semimetals, it is not clear whether a local bosonic effective field theory can be obtained.…”
Section: Conclusion and Discussionmentioning
confidence: 99%
“…Based on both low energy effective theory approach and numerical results in a microscopic model of doped topological insulators, we propose two physical consequences of the anomaly, the chiral modes in magnetic vortices, and the magnon-plasmon coupling. An open question is whether it is possible to write down a topological effective field theory to characterize the transport properties of the Weyl semimetals, as in the topological insulators 5,16,37 . Since there are gapless fermions in Weyl semimetals, it is not clear whether a local bosonic effective field theory can be obtained.…”
Section: Conclusion and Discussionmentioning
confidence: 99%
“…This is just the electric-magnetic duality in (2 + 1) dimensions: it plays a role in the bosonization of (2 + 1)-dimensional fermions through the tomographic representation [12,[58][59][60][61] and other approaches [30,31]. In our setting, this duality is just the first-order Hamiltonian description of the relativistic wave equation, that is inherited from the first-order bulk theory.…”
Section: Jhep05(2017)135mentioning
confidence: 93%
“…• That of bosonic theories, also called hydrodynamic approach, dealing with topological gauge theories and their description of braiding relations and boundary excitations [12,[26][27][28][29][30][31].…”
Section: Jhep05(2017)135mentioning
confidence: 99%
“…We have 19) where U in S W Z [U ] is the continuum field U (t, x, y). It remains to evaluate ∂ y S W Z [U ].…”
Section: B Edge Theory Of the Bosonic Integer Quantum Hall Systemmentioning
confidence: 99%