Quasiexcitons in Incompressible Quantum Liquids

Abstract

Photoluminescence (PL) has been used to study two-dimensional incompressible electron liquids in high magnetic fields for nearly two decades. However, some of the observed anomalies coincident with the fractional quantum Hall effect are still unexplained. We show that emission in these systems occurs from fractionally charged "quasiexciton" states formed from trions correlated with the surrounding electrons. Their binding and recombination depend on the state of both the electron liquid and the involved trion, predicting discontinuities in PL and sensitivity to sample parameters.

4 pages, 4 figures

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Cited by in corpus (8)

• Landau level mixing in the nu=5/2 fractional quantum Hall state
• Magneto-optical probing of weak disorder in a two-dimensional hole gas
• The Hierarchy of Incompressible Fractional Quantum Hall States
• Exact-diagonalization studies of trion energy spectra in high magnetic fields
• Non-equilibrium fractional quantum Hall states visualized by optically detected MRI
• Hyperfine-controlled domain-wall motion observed in real space and time
• Spontaneous Transition to a Correlated Phase of Skyrmions Observed in Real Space
• Probing fractional quantum Hall effect by photoluminescence