Units of the velocities of the propagating modes
Dear all, maybe mine is a stupid question, but I’m not sure about the units of measure of the velocities of the propagating modes. I mean, if, e.g., the parameters entering my tight binding system are the lattice constant a, the nearest neighbor hopping energy and the Fermi level, to get the right dimensions of a velocity I need to introduce the Planck constant somewhere. Thus, my question is simply which are the units in which kwant gives back the velocities of the propagating modes? Thank you for your attention! Best regards, Michael Beconcini
Hi Michael,
It's simply your unit of energy times your unit of length.
Cheers,
Anton
On Wed, May 4, 2016 at 4:47 PM, Michael Beconcini
Dear all,
maybe mine is a stupid question, but I’m not sure about the units of measure of the velocities of the propagating modes. I mean, if, e.g., the parameters entering my tight binding system are the lattice constant a, the nearest neighbor hopping energy and the Fermi level, to get the right dimensions of a velocity I need to introduce the Planck constant somewhere.
Thus, my question is simply which are the units in which kwant gives back the velocities of the propagating modes?
Thank you for your attention!
Best regards, Michael Beconcini
participants (2)
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Anton Akhmerov
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Michael Beconcini