Particle-hole symmetric Luttinger liquids in a quantum Hall circuit

Stefano Roddaro, Umberto Perinetti, Vittorio Pellegrini, Fabio Beltram, Loren N. Pfeiffer, Ken W. West

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We report finite-bias differential conductance measurements through a split-gate constriction in the integer quantum Hall regime at ν = 1. Both enhanced and suppressed zero-bias inter-edge backscattering can be obtained in a controllable way by changing the split-gate voltage. This behavior is interpreted in terms of local charge depletion and particle-hole symmetry. We discuss the relevance of particle-hole symmetry in connection with the chiral Luttinger model of edge states.

Original languageEnglish (US)
Pages (from-to)132-135
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1-2
StatePublished - Aug 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


  • Mesoscopic systems and quantum Hall effect
  • Strongly correlated electrons


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