Quantum dynamics in nonequilibrium strongly correlated environments

  title={Quantum dynamics in nonequilibrium strongly correlated environments},
  author={Matthew B. Hastings and Ivar Martin and D Mozyrsky},
  journal={Physical Review B},
We consider a biased quantum point contact between two Luttinger liquids measuring a quantum-mechanical system (oscillator). There are three main physical results. First, we find that for voltages higher than the oscillator level spacing, the effect of the measurement is equivalent to coupling to a heat bath, with an effective temperature that only depends on the device $I\ensuremath{-}V$ characteristic. Second, we find that this heating changes the $I\ensuremath{-}V$ characteristics on the… 
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Edge transport properties of the fractional quantum Hall states and weak-impurity scattering of a one-dimensional charge-density wave.
  • Wen
  • Physics
    Physical review. B, Condensed matter
  • 1991
An exact mapping between two-dimensional quantum Hall systems and one-dimensional electron models is found and a narrow-band noise is found in the dc transport of the FQH states, which can be used to directly measure the fractional charge of the quasiparticles.