[MMTK] Relaxation times, relation to W_S and W_V (Kneller et al.)?

[Andreas Kring]

Hi,

How are the relaxation times for the NoseThermostat and the 
AndersenBarostat related to the parameters W_S and W_V (Kneller et al., 
Phys. Rev. E, 54, 6825 (1996)), respectively?

Are the related in the following way?

Thermostat:
W_S = 3*N*k_B*Temp*(rexalation time)**2,
where N is the number of atoms in the system.

Barostat:
W_V = [P_ext*(relaxation time)**2]/(some reference length)**3


Kind regards
Andreas