Ambipolar diffusion times may be as high as 10 8 yr for these clouds.

In the field of plasma physics, ambipolar diffusion is closely related to the concept of quasineutrality.

Ambipolar diffusion is diffusion of positive and negative species with opposite electrical charge due to their interaction via an electric field.

In astrophysics, "ambipolar diffusion" refers specifically to the decoupling of neutral particles from plasma, for example in the initial stage of star formation.

There is sufficient magnetic field in the ISM to create such high magnetic fields-indeed, so much so that the theory of ambipolar diffusion has to be invoked to reduce the field in normal stars.

'Cosmic Plasmas Inside Stars, (Dense Plasma)' includes Stars, plasma physics, active galactic nucleus, fusion power, magnetohydrodynamics, X-rays , bremsstrahlung, Physical Cosmology , reionization, ambipolar diffusion, Particle Physics and others.