Can anyone tell me anything about vacuum energy?

Question

I read something in a science journal recently about how that solid matter (I.e. atoms) can arise from fluctuation in background vacuum energy every so often. Can anyone tell me more about this? Also does anyone know anything about the boltzmann brain theory?

Answer 1

Because of quantum level effects, particle-antiparticle pairs are continually being produced and annihilated, even in a vacuum. This is called vacuum fluctuations. The probability of such a fluctuation decreases as the masses involved increase, so to produce a proton through this method is of very low probability, let alone a whole atom. This, by the way, is a well-known and measured effect.

The link below explains the Boltzman's brain paradox. Much, but not all, of the discussion following the article is very good and by professionals.

Answer 2

What is call vacuum energy is really the Result of the Power stored as pressure of the substance of space.
The word vaccum means absence of atmosphere. It does not mean that space not containing air that its devoid of any substance.
The boltzman brain theory was a description of what statistically happens if you put mass particles in a box how would they be described in terms of Entropy.
So it indicates how the energy of a particle statistically dissipates(fluctuation)as per low Entropy or high entropy.

The difficulties of the theory is that for energy to fluctuate requires a medium which would have different pressure levels.
This can only happen if space is constructed out of a granular system which would provide different pressure levels in the Universe .This is what Einstein aluded to in his cosmological constant.
The whole idea of what was called the Aether and the relationship with the cosmological constant was abandoned by Einstein.The reason was that in view of Hubble's discovery ,he decided that the formulation of the cosmological constant was a blunder.

Answer 3

Read " A Brief History of Time" by Stephen Hawkins