Dynamical Casmir Effect in expanding space?

  • #1
106
3

Main Question or Discussion Point

The Dynamical Casimir Effect is the production of real photons from the vacuum in a system where one has moving mirrors (see https://www.technologyreview.com/s/424111/first-observation-of-the-dynamical-casimir-effect/). The frequency of the photons is related to the ratio of the velocity v of the mirrors and their separation r.

Could the same phenomenon occur on a cosmological scale in expanding space?

In every region of expanding space we have Hubble's law given by v = H r.

Perhaps real photons are produced with a frequency given by the Hubble parameter H?
 

Answers and Replies

  • #2
Demystifier
Science Advisor
Insights Author
10,686
3,405
Expansion of the universe creates particles by a mechanism very similar to the dynamical Casimir effect. See e.g. the book Birrell and Davies, Quantum Fields in Curved Space.
 

Related Threads for: Dynamical Casmir Effect in expanding space?

  • Last Post
Replies
1
Views
897
Replies
4
Views
475
  • Last Post
2
Replies
32
Views
6K
  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
5
Views
1K
Top