TY - JOUR

T1 - Fractional charge and correlation exponents for interacting electrons in one dimension

AU - Kolomeisky, Eugene B.

AU - Straley, Joseph P.

PY - 1995

Y1 - 1995

N2 - Close to the transition between incommensurate conductor and commensurate insulator, charge transport in a system of one-dimensional interacting spin-1/2 fermions moving in a periodic potential is done by solitons (i.e., the few extra particles or holes) having a charge Q which is a fraction of the elementary charge e. We show that Q is directly related to the limiting value at commensuration of the exponent gc* of the charge-charge correlation function: gc*=(Q/e)2. We give some simple rules for determining both charge and spin correlation exponents and point out their dependence on the parity of the order of the underlying umklapp scattering.

AB - Close to the transition between incommensurate conductor and commensurate insulator, charge transport in a system of one-dimensional interacting spin-1/2 fermions moving in a periodic potential is done by solitons (i.e., the few extra particles or holes) having a charge Q which is a fraction of the elementary charge e. We show that Q is directly related to the limiting value at commensuration of the exponent gc* of the charge-charge correlation function: gc*=(Q/e)2. We give some simple rules for determining both charge and spin correlation exponents and point out their dependence on the parity of the order of the underlying umklapp scattering.

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U2 - 10.1103/PhysRevLett.74.4891

DO - 10.1103/PhysRevLett.74.4891

M3 - Article

AN - SCOPUS:0040180183

SN - 0031-9007

VL - 74

SP - 4891

EP - 4894

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

ER -