Reconstructing the electron in a fractionalized quantum fluid

Jainendra K. Jain, Michael R. Peterson

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7 Scopus citations


The low-energy physics of the fractional Hall liquid is described in terms of quasiparticles that are qualitatively distinct from electrons. We show, however, that a long-lived electronlike quasiparticle also exists in the excitation spectrum: the state obtained by the application of an electron creation operator to a fractional quantum Hall ground state has a nonzero overlap with a complex, high energy bound state containing an odd number of composite-fermion quasiparticles. The electron annihilation operator similarly couples to a bound complex of composite-fermion holes. We predict that these bound states can be observed through a conductance resonance in experiments involving a tunneling of an external electron into the fractional quantum Hall liquid. A comment is made on the origin of the breakdown of the Fermi liquid paradigm in the fractional Hall liquid.

Original languageEnglish (US)
Article number186808
JournalPhysical review letters
Issue number18
StatePublished - May 13 2005

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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