Tunneling spectroscopy between one-dimensional helical conductors

  title={Tunneling spectroscopy between one-dimensional helical conductors},
  author={Bernd Braunecker and Pascal Simon},
  journal={Physical Review B},
We theoretically investigate the tunneling spectroscopy of a system of two parallel one-dimensional helical conductors in the interacting, Luttinger liquid regime. We calculate the non-linear differential conductance as a function of the voltage bias between the conductors and the orbital momentum shift induced on tunneling electrons by an orthogonal magnetic field. We show that the conductance map exhibits an interference pattern which is characteristic to the interacting helical liquid. This… 
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