Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP03(2016)105
Keywords
Conformal and W Symmetry; Field Theories in Lower Dimensions; Topological States of Matter
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Funding
- Simons Center for Geometry and Physics, Stony Brook
- G. Galilei Institute for Theoretical Physics, Arcetri
- European IRSES grant, 'Quantum Integrability, Conformal Field Theory and Topological Quantum Computation' (QICFT)
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The effective action for low-energy excitations of Laughlin's states is obtained by systematic expansion in inverse powers of the magnetic field. It is based on the W infinity symmetry of quantum incompressible fluids and the associated higher-spin fields. Besides reproducing the Wen and Wen-Zee actions and the Hall viscosity, this approach further indicates that the low-energy excitations are extended objects with dipolar and multipolar moments.
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