Astroparticle Physics Forum COSMOVIA

VIA lecture by Prof. Igor Nikitin "Wormholes and Teleporters" was given on 13th of March 2020. It's presentation is attached and the record is in VIA library
http://viavca.in2p3.fr/igor_nikitin_.html
In the course of lecture I have put a question about the unit length of an exotic string in Planck units.
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The linear mass density of exotic string is: in geometric units (G=c=1) mu=-1/4, in natural units (-1/4)c^2/G=(-1/4)mP/lP, where mP=sqrt(hbar*c/G), lP=sqrt(hbar*G/c^3). Note how hbar is cancelled from the result. It is since the result is purely classical. Also, in the units hbar=c=1, where mP=lP^-1, the result is (-1/4)mP^2, you are right.

Thank you for your interesting talk and clarifying the case
With the best regards
M.Yu.Khlopov