Reconstructing the electron in a fractionalized quantum fluid

Jainendra K. Jain, Michael R. Peterson

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

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
Volume94
Issue number18
DOIs
StatePublished - May 13 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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