maximum_momentum

[MSAfify]

Hi Prof. Daniel,
Please let me know what the difference is between maxP, maxPperpS, and maxPparS, which appear in the test_ICW_dist.in file in the distribution folder.

• In the ALPS paper, what is the meaning of M_I and M_P on page 10? Which symbols refer to such variables in the input file?
• Also, for P_max||p = 6m_p v_A, the normalized parallel momentum should be P_max||p=6, right?
  Thanks!
  Mahmoud

[danielver02]

Hi Mahmoud,

With maxPperpS and maxPparS, you can set different maximum momenta for each species. maxP defines a maximum for the first species, and the code then tries to find the best scaling if you set autoscaleS to TRUE. If you want to force a defined maximum momentum via maxPperpS and maxPparS, then autoscale must be set to FALSE.

M_I and M_P are the variables positions_principal and n_resonance_interval. Please read the code documentation carefully, as these quantities are explained and defined there. Here is the link: https://danielver02.github.io/ALPS/page/input.html

Yes, your question about the momentum is correct. All momentum units are given in units of m_p v_A (i.e., the Alfvén momentum of the reference species).

Best wishes,
-Daniel

[MSAfify]

Hi Prof. Daniel,
Great thanks!
Mahmoud