jarvis.analysis.darkmatter.metrics
¶
Module to calculate the dark-matter screening.
Module Contents¶
Functions¶
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Provide Peskin Scroeder constant for a material. |
- jarvis.analysis.darkmatter.metrics.peskin_schroeder_constant(bandgap=None, fermi_velocities=[], epsilon=[])[source]¶
Provide Peskin Scroeder constant for a material.
Just proportionality constant. Doesn’t take into account g and Lambda.
- Args:
bandgap: benadgap in eV.
fermi_velocities: vx, vy, vz
epslion: eigenvalues of epsilon tensor
- Return:
1/(epsion*vF)