Quasiparticles in the 111 state and its compressible ancestors

Abstract

We investigate the relationship of the spontaneously inter-layer coherent ``111''state of quantum Hall bilayers at total filling factor ν=1 to ``mutual'' composite fermions, in which vortices in one layer are bound to electrons in the other. Pairing of the mutual composite fermions leads to the low-energy properties of the 111 state, as we explicitly demonstrate using field-theoretic techniques. Interpreting this relationship as a mechanism for inter-layer coherence leads naturally to two candidate states with non-quantized Hall conductance: the mutual composite Fermi liquid, and an inter-layer coherent charge e Wigner crystal. The experimental behavior of the interlayer tunneling conductance and resistivity tensors are discussed for these states.

arXiv comment4 Pages, RevTex

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Cited by in corpus (14)

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• Precursors to Exciton Condensation in Quantum Hall Bilayers
• Numerical Study of Quantum Hall Bilayers at Total Filling ${\nu }_T=1$: A New Phase at Intermediate Layer Distances
• Mutual Composite Fermion and composite Boson approaches to balanced and imbalanced bilayer quantum Hall system: an electronic analogy of the Helium 4 system
• Wave Function and Emergent SU(2) Symmetry in ${\nu }_T=1$ Quantum Hall Bilayer
• Tunneling, dissipation, and superfluid transition in quantum Hall bilayers
• Paired states in half-filled Landau levels
• Correlation energy, quantum phase transition, and bias potential effects in quantum Hall bilayers at nu=1
• Pinned Bilayer Wigner Crystals with Pseudospin Magnetism
• Metamorphosis of a Quantum Hall Bilayer State into a Composite Fermion Metal
• On ground states of interacting Composite Fermions with spin at half filling
• Exciton Condensation in Quantum Hall Bilayers at Total Filling ${\nu }_T=5$
• Status of the Fermi surface in mixed composite boson - composite fermion quantum Hall states