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0 votes
2 answers
122 views

Quantum fluctuations and symmetries?

While reading this piece about symmetry breaking, in section 3 I came across the term "anomalous symmetry breaking", which happens when a symmetry is broken by quantum fluctuations: Let us ...
vengaq's user avatar
  • 2,462
0 votes
1 answer
87 views

Is the early universe cosmology phase transition thermal or quantum? WHY?

In this question How does SSB happen?, one of the answers assumes the nature of the early universe phase transition to be thermal. I need to know why can't such phase transition be a quantum phase ...
Bastam Tajik's user avatar
  • 1,268
4 votes
1 answer
79 views

Is the value of the scalar components of the Higgs field known?

As I understand the relevant popular sources (example), since the end of the Electroweak epoch, the Higgs field became fixed in the whole known Universe. Thus, we are somewhere on the deep blue part (...
peterh's user avatar
  • 8,247
6 votes
1 answer
147 views

Does Goldstone theorem have anything to do with Cosmic string

Cosmic strings are formed due to topological defects during symmetry breaking phase transition in early universe. While Goldstone theorem states whenever we have continuous symmetry and it is ...
aitfel's user avatar
  • 3,043
1 vote
0 answers
46 views

Do hierarchical condensates yield instantaneous or sequential symmetry breaking?

I am wondering whether the formation of a hierarchical vacuum condensate yields an instantaneous or sequential symmetry breaking in a cosmological phase transition. Let me illustrate this question ...
Thomas's user avatar
  • 1,783
1 vote
0 answers
336 views

Spontaneous symmetry breaking by axions?

I am just reading at the beginnin of this nice article, that axions could be responsible for spontaneously breaking of a symmetry in the early universe. Does anybody know which symmetry is alluded to ...
Dilaton's user avatar
  • 9,581
8 votes
0 answers
145 views

Does the Standard Model plasma develop a spontaneous magnetisation at finite temperature?

Reference: arXiv:1204.3604v1 [hep-ph] Long-range magnetic fields in the ground state of the Standard Model plasma. Alexey Boyarsky, Oleg Ruchayskiy, Mikhail Shaposhnikov. The authors of this paper ...
Michael's user avatar
  • 16.6k