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Composite Fermion Pairing Induced by Landau Level Mixing
Tongzhou Zhao1, Ajit C Balram2,3, J K Jain4
1Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Abstract:
Pairing of composite fermions provides a possible mechanism for fractional quantum Hall effect at even denominator fractions and is believed to serve as a platform for realizing quasiparticles with non-Abelian braiding statistics. We present results from fixed-phase diffusion Monte Carlo calculations which predict that substantial Landau level mixing can induce a pairing of composite fermions at filling factors ν=1/2 and ν=1/4 in the l=-3 relative angular momentum channel, thereby destabilizing the composite-fermion Fermi seas to produce non-Abelian fractional quantum Hall states.
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