1995
DOI: 10.1103/physrevlett.74.3005
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Exact Conductance through Point Contacts in theν=1/3Fractional Quantum Hall Effect

Abstract: The conductance for tunneling through a point contact between two ν = 1/3 quantum Hall edges is described by a universal scaling function, which has recently been measured experimentally. We compute this universal function exactly, by using the thermodynamic Bethe ansatz and a Boltzmann equation.

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Cited by 325 publications
(513 citation statements)
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“…The TLL model has been discussed in various contexts in the literature, such as one dimensional quantum wires [4][5][6][7], Josephson junctions arrays [8][9][10][11], Kondo effects [12][13][14], carbon nanotube [15] and edge states of quantum Hall effects [16][17][18]. The TLL model in the presence of an impurity is formulated as a one dimensional fermion theory with four fermi interactions on a half line and a tunneling interaction through an impurity at the origin.…”
Section: Introductionmentioning
confidence: 99%
“…The TLL model has been discussed in various contexts in the literature, such as one dimensional quantum wires [4][5][6][7], Josephson junctions arrays [8][9][10][11], Kondo effects [12][13][14], carbon nanotube [15] and edge states of quantum Hall effects [16][17][18]. The TLL model in the presence of an impurity is formulated as a one dimensional fermion theory with four fermi interactions on a half line and a tunneling interaction through an impurity at the origin.…”
Section: Introductionmentioning
confidence: 99%
“…There exist various investigations, e.g., [17,13,14,18] for conformal (massless) theories with defect, which exploit the original folding idea of Wong and Affleck [17]. The idea is that a conformal field theory with a purely transmitting or reflecting defect can be mapped into a boundary theory, i.e.…”
Section: Introductionmentioning
confidence: 99%
“…Generalizing the Landauer transport picture a proposal for the conductance through a quantum wire with a defect (impurity) has been made in [13,14] …”
Section: Introductionmentioning
confidence: 99%
“…as in [1][2][3]7,8,10 . In the limit of weak tunnelling it has been demonstrated 9 that the selfconsistently adjusted chemical potential indeed varies most pronouncedly close to x = 0 .…”
mentioning
confidence: 99%
“…Since the discovery of the vanishing transmittivity of a tunnel barrier in a one-dimensional (1D) wire due to the repulsive electron-electron interaction 1 new interest has emerged in the transport properties of 1D electron systems [2][3][4][5][6][7][8][9][10] . Indeed, the influence of the electron correlations shows up strikingly in non-linear current voltage relations which are investigated experimentally in narrow, semiconducting wires 11 .…”
mentioning
confidence: 99%