Theory of "Charge" Measured by Shot Noise Experiments in Fractional Quantum Hall States

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Author(s)

Abstract

A shot noise at filling factor v = 2/5 is investigated theoretically. It is argued that the "charge" e^* measured by the noise at absolute zero is not the quasiparticle charge but simply the filling factor times the electron charge e, namely e^* = 2e/5. At a higher temperature, quasiparticles with charge e^* = ±e/5 begin to contribute to backscattering, and the shot noise provides charge e^* = e/5. This theory explains the recent experiment by Chung et al. [Phys. Rev. Lett. 91 (2003) 216804].

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 73(7), 1639-1642, 2004-07-15

    The Physical Society of Japan (JPS)

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Codes

  • NII Article ID (NAID)
    110001954867
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    00319015
  • NDL Article ID
    7003889
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJP  NDL  NII-ELS 
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