Tunneling spectroscopy between one-dimensional helical conductors
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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 can be contrasted with the different interference pattern from tunneling between regular Luttinger liquids which is governed by the spin-charge separation of the elementary collective excitations.
Braunecker , B & Simon , P 2018 , ' Tunneling spectroscopy between one-dimensional helical conductors ' , Physical Review. B, Condensed matter and materials physics , vol. 98 , no. 11 , 115146 . https://doi.org/10.1103/PhysRevB.98.115146
Physical Review. B, Condensed matter and materials physics
Copyright © 2018 American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1103/PhysRevB.98.115146