Timeline for Was Big Bang a phase transition? [closed]
Current License: CC BY-SA 4.0
17 events
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| Jan 12, 2023 at 15:19 | history | edited | Roger V. | CC BY-SA 4.0 |
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| Nov 8, 2022 at 7:31 | history | closed |
Bob D Miyase ɪdɪət strəʊlə |
Needs details or clarity | |
| Nov 8, 2022 at 7:18 | comment | added | Ghoster | Our discussion has become too long. | |
| Nov 8, 2022 at 6:59 | comment | added | Roger V. | @Ghoster infinite here refers to the number of particles. Phase transition is a choice between several equivalent possibilities - why would Universe choose one and not another? | |
| Nov 7, 2022 at 21:05 | comment | added | Ghoster | What could have determined the direction of evolution of the Universe as a whole? The fact that it is expanding and cooling. Why is it puzzling that a cooling universe has phase transitions? | |
| Nov 7, 2022 at 21:03 | comment | added | Ghoster | Whether the universe is infinite is not a settled issue. The data seem to indicate that it is on the borderline between open and closed. The simplest assumption consistent with the data is that it is spatially flat and therefore infinite in extent, but we can’t be sure of this. | |
| Nov 7, 2022 at 20:37 | comment | added | Roger V. | @Ghoster or during perhaps? Anyhow, the questions that I raise do not depend on that - the transitions happened in the whole universe - infinite,and without any external fluctuations. | |
| Nov 7, 2022 at 16:58 | comment | added | Ghoster | These phase transitions occurred after the Big Bang. | |
| Nov 7, 2022 at 14:30 | history | edited | Roger V. | CC BY-SA 4.0 |
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| Nov 7, 2022 at 13:57 | comment | added | Roger V. | @Quillo you are right, Anderson speaks of symmetry breaking in particle physics, but not really about big bang. | |
| Nov 7, 2022 at 13:56 | comment | added | Roger V. | @JohnRennie perhaps, I have little background on the subject. What really interests me here is whether/how we can talk about phase transition in a system not subject to external influences. And also - a system with truly infinite number of particles (rather than a thermodynamic limit.) | |
| Nov 7, 2022 at 13:52 | comment | added | John Rennie | By "Big Bang" do you mean the point at which inflation stopped and the expansion phase we see today started? If so are you asking about the transition from inflation to non-inflation? | |
| Nov 7, 2022 at 13:51 | review | Close votes | |||
| Nov 8, 2022 at 7:31 | |||||
| Nov 7, 2022 at 13:47 | comment | added | Quillo | @RogerVadim the reference to Anderson is interesting: where exactly? For sure, as the Universe was expanding, some phase transitions (related to spontaneous symmetry breaking) occurred, maybe Anderson was referring to this. | |
| Nov 7, 2022 at 13:41 | comment | added | Roger V. | @JohnDoty I am asking about the theoretical description/understanding. Anderson seems to refer to it in More is Different, but I do not have relevant background to understand what he is talking about. | |
| Nov 7, 2022 at 13:38 | comment | added | John Doty | What observation do you propose to answer this question? | |
| Nov 7, 2022 at 13:26 | history | asked | Roger V. | CC BY-SA 4.0 |