Anyon Condensation and Continuous Topological Phase Transitions in Non-Abelian Fractional Quantum Hall States

Details Anyon Condensation and Continuous Topological Phase Transitions in Non-Abelian Fractional Quantum Hall States Anyon Condensation and Continuous Topological Phase Transitions in Non-Abelian Fractional Quantum Hall States

2010-07-13

arxiv.org/abs/1007.2030v3

Phys.Rev.Lett.105:216804,2010

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages + refs

Scientific paper

We find a series of possible continuous quantum phase transitions between fractional quantum Hall (FQH) states at the same filling fraction in two-component quantum Hall systems. These can be driven by tuning the interlayer tunneling and/or interlayer repulsion. One side of the transition is the Halperin (p,p,p-3) Abelian two-component state while the other side is the non-Abelian Z4 parafermion (Read-Rezayi) state. We predict that the transition is a continuous transition in the 3D Ising class. The critical point is described by a Z2 gauged Ginzburg-Landau theory. These results have implications for experiments on two-component systems at \nu = 2/3 and single-component systems at \nu = 8/3.

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