Bmpbmp1975 Posted February 11, 2020 Posted February 11, 2020 So I have noticed it’s about a week now everyday there is a new article from a different source about this. Not sure why it keeps making the news day after day as though there is something up with it we should know about. From what I have been told the constant of 1/137 may have changed and if it fell below 1 it can put the universe in universe in a vacuum decay state https://www.google.ca/amp/s/www.sciencealert.com/astronomers-have-found-an-ancient-galaxy-that-grew-fast-then-died-suddenly/amp
Bmpbmp1975 Posted February 11, 2020 Author Posted February 11, 2020 (edited) From what I have been told the constant of 1/137 may have changed and if it fell below 1 it can put the universe in universe in a vacuum decay state with this data found Is this true if that is the case how long before it hits us Edited February 11, 2020 by Bmpbmp1975
Mordred Posted February 11, 2020 Posted February 11, 2020 Where did you hear that this is the result of a change in the fine structure constant ? A Hubble bubble due to change in vacuum would propogate at c and as a result we would get no warning.
Bmpbmp1975 Posted February 11, 2020 Author Posted February 11, 2020 (edited) 47 minutes ago, Mordred said: Where did you hear that this is the result of a change in the fine structure constant ? A Hubble bubble due to change in vacuum would propogate at c and as a result we would get no warning. So someone in another forum told me that the Newley found dead galaxy can mean the 1/137 has changed? so if it did change then it can put the universe constant less than one which would move the universe out of metastable state ( Well I would question such a claim unless they could provide a decent peer review article on it. There have been numerous studies of a potential varying fine structure constant. However deep field studies show no variation outside error measurement bars.) ? has the 1/137 changed? has the métastable state changed? Edited February 11, 2020 by Bmpbmp1975
Mordred Posted February 11, 2020 Posted February 11, 2020 Well I would question such a claim unless they could provide a decent peer review article on it. There have been numerous studies of a potential varying fine structure constant. However deep field studies show no variation outside error measurement bars. 1
Sensei Posted February 11, 2020 Posted February 11, 2020 Fine-structure constant (alpha) is used in equation of ionisation energy of Hydrogen. So, if alpha changes, ionisation energy must change.. or it would have to be compensated by change of other constant (which would not be considered constant anymore obviously).. 4 hours ago, Bmpbmp1975 said: From what I have been told the constant of 1/137 may have changed and if it fell below 1 it can put the universe in universe in a vacuum decay state Fine-structure constant is already below 1. It's 1/137 (less than 0.0073) already ;)
Sensei Posted February 11, 2020 Posted February 11, 2020 8 hours ago, Bmpbmp1975 said: https://www.google.ca/amp/s/www.sciencealert.com/astronomers-have-found-an-ancient-galaxy-that-grew-fast-then-died-suddenly/amp I noticed that there is not a single word about fine-structure constant nor it's alleged variability in the above article which you provided in OP.. Your question mismatches article's contents..
swansont Posted February 11, 2020 Posted February 11, 2020 9 hours ago, Bmpbmp1975 said: So someone in another forum told me that the Newley found dead galaxy can mean the 1/137 has changed? Can mean. As in, one of many possible explanations, and without any kind of justification. I would surmise the argument is that if the fine structure constant changed then electromagnetic interactions would change characteristics or even "turn off" and we'd stop getting the light we're used to seeing. But there would probably be other ramifications and we'd have to investigate further. Mordred has stated that a Hubble bubble would travel at c. It would already be here if we can see this galaxy's weird state.
Mordred Posted February 11, 2020 Posted February 11, 2020 (edited) Even with the propogation speed aside, the ramifications of a change in the fine structure constant should also affect spectrography measurements for example the 21 cm Hydrogen line. Something like that would be bigger news than the article itself I would think. Anyways here is the arxiv article for the above study. You will note that a changing fine structure constant is not on the list of possible causes. https://arxiv.org/abs/1910.10158 Edited February 11, 2020 by Mordred
swansont Posted February 11, 2020 Posted February 11, 2020 The article says nothing about the light coming from it, just that it's not forming new stars. The fine structure constant wouldn't be the culprit — that's for electromagnetic interactions. You'd have to have a nuclear coupling change if that kind of explanation had any merit.
Bmpbmp1975 Posted February 12, 2020 Author Posted February 12, 2020 (edited) My apologies I am still new and limitied to 5 posts per day. I saw your answers and that helped my understanding. Question can a change in the fine-structure constant lead to vacuum decay. Edited February 12, 2020 by Bmpbmp1975
Mordred Posted February 12, 2020 Posted February 12, 2020 Hrrm vacuum decay isn't a very accurate descriptive of a quantum vacuum. A more accurate descriptive would be a different vacuum state. A change in the fine structure can affect the vacuum impedance value. Through the equivalent relation [math]\alpha=\frac{e^2}{4\pi}\frac{Z_o}{\hbar}[/math] https://en.m.wikipedia.org/wiki/Fine-structure_constant
MigL Posted February 12, 2020 Posted February 12, 2020 15 hours ago, swansont said: The article says nothing about the light coming from it, just that it's not forming new stars. The fine structure constant wouldn't be the culprit — that's for electromagnetic interactions. You'd have to have a nuclear coupling change if that kind of explanation had any merit. Where the he*l did I put my magnifying glass... 1
Bmpbmp1975 Posted February 12, 2020 Author Posted February 12, 2020 44 minutes ago, Mordred said: Hrrm vacuum decay isn't a very accurate descriptive of a quantum vacuum. A more accurate descriptive would be a different vacuum state. A change in the fine structure can affect the vacuum impedance value. Through the equivalent relation α=e24πZoℏ https://en.m.wikipedia.org/wiki/Fine-structure_constant So that’s a yes then, a change could lead to vacuum collapse
Mordred Posted February 12, 2020 Posted February 12, 2020 (edited) How do you collapse a vacuum ? A vacuum can have a wide range of energy states however a true vacuum is impossible under QM. Edited February 12, 2020 by Mordred
Strange Posted February 12, 2020 Posted February 12, 2020 7 hours ago, Bmpbmp1975 said: My apologies I am still new and limitied to 5 posts per day. I saw your answers and that helped my understanding. Question can a change in the fine-structure constant lead to vacuum decay. People have looked to see if the fine structure constant (or any other fundamental constants) have changed over time. There is no evidence that they have or can change. You might as well worry about whether gravity might stop working tomorrow.
Bmpbmp1975 Posted February 12, 2020 Author Posted February 12, 2020 1 hour ago, Mordred said: How do you collapse a vacuum ? A vacuum can have a wide range of energy states however a true vacuum is impossible under QM. QM?
Strange Posted February 12, 2020 Posted February 12, 2020 43 minutes ago, Bmpbmp1975 said: QM? Quantum mechanics
Sensei Posted February 12, 2020 Posted February 12, 2020 4 hours ago, MigL said: Where the he*l did I put my magnifying glass... Press ctrl - +...
Bmpbmp1975 Posted February 12, 2020 Author Posted February 12, 2020 2 hours ago, Strange said: Quantum mechanics I didn’t know it was impossible all the articles I have read and the works of Katie Mack state it is possible?
Bmpbmp1975 Posted February 12, 2020 Author Posted February 12, 2020 17 hours ago, Mordred said: Hrrm vacuum decay isn't a very accurate descriptive of a quantum vacuum. A more accurate descriptive would be a different vacuum state. A change in the fine structure can affect the vacuum impedance value. Through the equivalent relation α=e24πZoℏ https://en.m.wikipedia.org/wiki/Fine-structure_constant And you also stated it can be an change in the vacuum colloque theory
Bmpbmp1975 Posted February 12, 2020 Author Posted February 12, 2020 Sorry vacuum collapse stupid spell check
Mordred Posted February 12, 2020 Posted February 12, 2020 Ah. Well I stated vaccum collapse isn't accurate. Not in the circumstances your describing. You have to understand a vacuum describes an energy state with associations to pressure. For example the electroweak symmetry breaking resulted in a phase transition from the false vacuum to true vacuum. The false vaccuum describes a higher potential. This is one of the more likely causes of inflation. Now ask yourself this question if the fine structure does change then some other of the following relations must also change. [math]\alpha=\frac{1}{4\pi\epsilon^2}\frac{e^2}{\hbar c}[/math] Where [math]\epsilon [/math] is the electric constant or permittability of free space. e is the electric charge, c is the speed of light. So if the fine structure changes then another constant must have also changed.
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