Geometrical Description of the Fractional Quantum Hall Effect

Jun, 2011
4 pages
Published in:
  • Phys.Rev.Lett. 107 (2011) 116801
e-Print:

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Abstract: (arXiv)
The fundamental collective degree of freedom of fractional quantum Hall states is identified as a unimodular two-dimensional spatial metric that characterizes the local shape of the correlations of the incompressible fluid. Its quantum fluctuations are controlled by a topologically-quantized "guiding-center spin". Charge fluctuations are proportional to its Gaussian curvature.
Note:
  • 4 pages, 0 figures; typo in formula for gaussian curvature of quasiparticle (p 4, last paragraph) fixed
  • 73.43.Lp
  • 73.43.Cd