All Questions
Tagged with cosmology condensed-matter
9
questions
-3
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Are the optical medium of 10.1007/BF00758153 and the Lorentz Ether of 10.1007/s00006-011-0303-7 the same thing? [closed]
On the gravitational field acting as an optical medium
A Generalization of the Lorentz Ether to Gravity with General-Relativistic Limit
The first paper seems to be facing a question: whether there ...
- 13
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33
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In Cyclical Cosmology (Big Bounce) is it possible the new universe will be different or the same? [closed]
Could it be a universe with similar laws to ours but a different configuration of matter, so there may be another earth like planet in this new universe?
- 11
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1
answer
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How to test for possible negative mass of dark matter?
What is the phenomenology of how to test if dark matter has possibly a negative mass (WP negative mass) in particle physics experiments, cosmology or astrophysics?
I lately came across this ...
- 4,170
3
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Can Lorentz symmetry be broken?
I am used to symmetry breaking in condensed matter, where we have a preferred reference frame (superconductivity, ferromagnets, etc). But what about Lorentz symmetry? What would such symmetry breaking ...
- 2,625
7
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1
answer
858
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What is "The Universe in a helium droplet" about?
The book by E. Volovik seems very complete but I was unable to read it since it requires a very technical understanding of various areas of physics.
Can anyone explain what this theory is about and ...
- 1,171
0
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1
answer
957
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What was (physically) present within the mass of initial singularity?
I've been trying to figure out what scientists believe to have been infinitely condensed in initial singularity. It is claimed that all mass existed before the big bang, this leads me to many ...
- 103
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116
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A Universe with only a single fermion
Is a Universe with only a single fermion anomalous instead of free from anomalies?
(e.g. electron, defined through fermi statistics with exchange statistics with a gained $-1$ sign, or rotating 360 ...
user32229
3
votes
1
answer
706
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In the big crunch theory, when the big crunch singularity forms, can the resulting black hole decay through hawking's radiation?
I've been pondering about this and I couldn't really find the answer for this. The big crunch theory postulates that the universe will eventually stop expanding and reverse back in on its self into a ...
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9
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1
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BCS wave function in Neutron stars
I've heard mentioned in various classes that neutron stars, like superconductors, are described by BCS theory. I know that in superconductors a key element in forming cooper pairs is a net attractive ...
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