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D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

New postPosted: Fri 27 Mar 2020 12:14
by Maxim Khlopov
VIA lecture by Dong-Biao Kang "Explaining the cuspy dark matter halo by Landau-Ginzburg theory" was given on 27.03.2020. Its presentation is attached
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Re: D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

New postPosted: Fri 27 Mar 2020 14:47
by Dong-Biao Kang
Thank you Maxim.

Re: D-B Kang:Cuspy dark matter halo in Landau-Ginzburg theory

New postPosted: Fri 27 Mar 2020 14:58
by Maxim Khlopov
Thank you, Bill, for joining this Forum discussion.
I had a question to you, which I didn't ask in view of our bad connection today:
You have mentioned pair interactions and violent relaxation as possible mechanisms of reaching equilibrium in a self-gravitating system.
There was an interesting mechanism of collective effects in such systems, proposed by V.G. Gurzadyan and G.K. Savvidi in Astrophys. J., V. 160, p.203 (1986). This mechanisms leads to relaxation time scale which is proportional to N^{2/3} and not to N/lnN as for pair interactions.
Can this mechanism influence your results?