Comment on "Temperature inversion in long-range interacting systems".

In the recent paper by Teles et al. [Phys. Rev.

Magnetically stimulated diffusion of Rydberg gases.

The specific kind of diffusion stimulated (rather than suppressed) by the external magnetic field, which was predicted for the first time by Schmelcher and Cederbaum in 1992, is considered here for the case of high-angular-momentum (i.e., approximately "circular") Rydberg atoms.