Quantum fluctuation

ttomthebomb · Feb 28, 2011

So, I read Dr. Werner Heisenberg's theorem on quantum fluctuations and I am quite impressed with the principle of uncertainty. How there could be a temporary change of energy in space at any given spot and at any time.
Apparently these fluctuations helped conceive the universe's structure, also known as the Big Bang.

"The universe was in a quantum state before the Big Bang even existed."

"Because there can be no such thing as 0 energy in the universe, the universe also adheres to the thermal laws of thermodynamics, which basically says absolute zero is unattainable."

Just thought I would post this.

Dr. Hobo · Mar 1, 2011

Gotta read up on this.
Do you recommend any articles or books?

Fishâ„¢ · Mar 1, 2011

This sounds interesting, like Dr. Hobo said could you please provide the links to any articles/websites in general that you used so we can gather some more information on it? Thanks.

ttomthebomb · Mar 1, 2011

I honestly forgot I posted this thread.
Here guys, give this a look at first and I'll post some other stuff too:

1. http://www.newton.dep.anl.gov/askasci/phy00/phy00776.htm
2. http://www.sciencedaily.com/releases/2010/01/100109002316.htm

Picture:

Long ramble:

"You need to look at these words in a very narrow way. QFT is the unification of special relativity and QM. This means that both E=mcÂ² (from special relativity) and the Heisenberg uncertainty principle (from QM) can be used. Now if you look at the vaccuum state, it has a non-zero energy value in QFT. This means that via E=mcÂ² we can look at this vaccuum as being filled with particles. These particles are virtual particles. Now via the uncertainty relation we can deduce that during a very short while, we can apply a big amount of energy in order to make these virtual particles real. The question now is why these particles are virtual. The answer is this : virtual means that these particles can never be the end-result of some kind of interaction. they only exist as an intermediate stage during some interaction. The best example is the interaction between two electrons wia the exchange of virtual photons in QED. When applying lot's of energy a virtual particle becomes real. This means that it can exist on itself and it should be treated equally with other real particles. This explains how in field theory an electron can pop up suddenly and shortly after it dissapears again. During this process one can say that energy is not conserved and to some extent that is correct. However you need to incorporate the fact that this only happens during a very short time and when looking at some interaction in total, the netto-energy is always conserved. These processes are more of a local instantaneous violation of energy but looked at the time scale of the actual interaction going on (like the two electrons interaction via the virtual photons) you can say that the net-energy is conserved."

Fishâ„¢ · Mar 1, 2011

ttomthebomb said:
I honestly forgot I posted this thread.
Here guys, give this a look at first and I'll post some other stuff too:

1. http://www.newton.dep.anl.gov/askasci/phy00/phy00776.htm
2. http://www.sciencedaily.com/releases/2010/01/100109002316.htm

Picture:

Long ramble:

"You need to look at these words in a very narrow way. QFT is the unification of special relativity and QM. This means that both E=mcÂ² (from special relativity) and the Heisenberg uncertainty principle (from QM) can be used. Now if you look at the vaccuum state, it has a non-zero energy value in QFT. This means that via E=mcÂ² we can look at this vaccuum as being filled with particles. These particles are virtual particles. Now via the uncertainty relation we can deduce that during a very short while, we can apply a big amount of energy in order to make these virtual particles real. The question now is why these particles are virtual. The answer is this : virtual means that these particles can never be the end-result of some kind of interaction. they only exist as an intermediate stage during some interaction. The best example is the interaction between two electrons wia the exchange of virtual photons in QED. When applying lot's of energy a virtual particle becomes real. This means that it can exist on itself and it should be treated equally with other real particles. This explains how in field theory an electron can pop up suddenly and shortly after it dissapears again. During this process one can say that energy is not conserved and to some extent that is correct. However you need to incorporate the fact that this only happens during a very short time and when looking at some interaction in total, the netto-energy is always conserved. These processes are more of a local instantaneous violation of energy but looked at the time scale of the actual interaction going on (like the two electrons interaction via the virtual photons) you can say that the net-energy is conserved."

Damn, this is fascinating, thanks for the articles ^^

Quantum fluctuation

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