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mattthecat
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I want to get some opinions on quantum fluctuations what they mean, and how they could have created our universe. Thanks!
mattthecat said:So it would seem that quantum fluctuations would only be relevant after the vacuum was already in place? We certainly need a broader understanding of non demensional existence prior to the big bang. Hypothetically speaking assuming the vacuum state would have always existed in a state independent of time, could quantum fluctuations inflate into bubble universes, time being created in ours? Is this what is meant by quantum tunnled into existence?
Any sort of mathematical model humans create would of course be based on the laws of physics as we know them. That is, general relativity to the vacuum as a whole (probably an flat empty space solution) and quantum mechanics below the Planck length.mattthecat said:So what would the model be of prior big bang vacuum? Obviously you need a vacuum for these fluctuations, however wouldn't the laws of physics not be defined yet?
Could be. There are many possibilities. Some like the collapsing closed tunneling idea I discussed; some still like the vacuum fluctuation; others like loop quantum gravity (a flat or open universe that is infinitely old that is approaching a singularity but bounces instead into our universe); some still like the more traditional idea of a general relativity model universe where space and time emerged at t = 0.mattthecat said:Thanks for your response. A thought to add, I recently read a book by Lisa Randall a theoretical physicist who suggests the possibility of our universe existing as a brane in a higher dimensional spacetime.
Quantum fluctuations are small, random changes in the energy of a quantum system. They are an inherent characteristic of the quantum world and are a fundamental aspect of quantum mechanics.
According to the inflation theory, quantum fluctuations in the early universe caused tiny variations in the density of matter. These variations eventually grew and formed the large-scale structures we see in the universe today, such as galaxies and clusters of galaxies.
Yes, quantum fluctuations can be observed indirectly through their effects on physical systems. For example, the Casimir effect is a phenomenon that occurs due to quantum fluctuations between two closely spaced metal plates.
While quantum fluctuations are most commonly observed on a small scale, they are also thought to have played a role in the formation of the universe on a large scale. They are believed to have influenced the distribution of matter in the early universe, leading to the formation of galaxies and other structures.
At this time, quantum fluctuations cannot be controlled or harnessed in a predictable manner. However, scientists are researching ways to manipulate and utilize quantum fluctuations in fields such as quantum computing and quantum technology.