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In the beginning God created the heavens and the earth. 2 Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters.
3 And God said, “Let there be light,” and there was light.
"The result was that photons appeared in pairs from the vacuum, which we were able to measure in the form of microwave radiation," says Per Delsing. "We were also able to establish that the radiation had precisely the same properties that quantum theory says it should have when photons appear in pairs in this way."
What happens during the experiment is that the "mirror" transfers some of its kinetic energy to virtual photons, which helps them to materialise. According to quantum mechanics, there are many different types of virtual particles in vacuum, as mentioned earlier. Göran Johansson, Associate Professor of Theoretical Physics, explains that the reason why photons appear in the experiment is that they lack mass. "Relatively little energy is therefore required in order to excite them out of their virtual state. In principle, one could also create other particles from vacuum, such as electrons or protons, but that would require a lot more energy."
Originally posted by Maxmars
Of course, that was not scientific, and since science up until recently seemed unwilling to accept anything it could not directly measure as real; the notion of virtual particles was a real head scratcher for some traditionalists.
"I visualized the universe erupting out of nothing as a quantum fluctuation and I realized that it was possible that it explained the critical density of the universe."
Originally posted by Maxmars
Light Created from a Vacuum
www.sciencedaily.com
(visit the link for the full news article)
Scientists at Chalmers have succeeded in creating light from vacuum -- observing an effect first predicted over 40 years ago. In an innovative experiment, the scientists have managed to capture some of the photons that are constantly appearing and disappearing in the vacuum.
...
The experiment is based on one of the most counterintuitive, yet, one of the most important principles in quantum mechanics: that vacuum is by no means empty nothingness.
Originally posted by Maxmars
In a universe where something can come from nothing... is it really safe to say that we "know" anything for certain?
However, the main value of the experiment is that it increases our understanding of basic physical concepts, such as vacuum fluctuations -- the constant appearance and disappearance of virtual particles in vacuum. It is believed that vacuum fluctuations may have a connection with "dark energy" which drives the accelerated expansion of the universe. The discovery of this acceleration was recognised this year with the awarding of the Nobel Prize in Physics.
Originally posted by Gorman91
reply to post by Maxmars
This is cool because it essentially means you can add or subtract space-time into light. IE, warp drive!
Originally posted by CaptChaos
This is idiotic nonsense, obviously. To imagine that particles magically wink in and out of existence? And then, in an experiment specifically designed to have the desired outcome, after spending billions of dollars to produce an infinitesimal result the somehow proves something, a magical virtual mirror vibrating at 25 percent of the speed of light came up with the equation of bla bla bla.....I guess I'm the only one who sees this as retarded. How bout we try some real experiments instead of a bunch of computer simulations, and see what happens?
Originally posted by CLPrime
reply to post by FOXMULDER147
Unless, of course, he is assuming the existence of a larger universe, with the exact same laws as ours, in which our universe formed as a result of those laws.
Personally, I prefer the theory that the universe "began" as an infinite quantum vacuum. Basically, this vacuum spontaneously collapsed, releasing a vast amount of energy, which then condensed to form matter...and the rest, as they say, is history. So, in that case, the universe is, and has always been, flat and infinite.
But if thermodynamics states that energy can't be destroyed, wouldn't this be like bringing new energy into the Universe? Regardless of how much energy they used to excite the virtual particles into becoming real, none of it would be destroyed. Perhaps maybe the energy is being transferred into the virtual particles, but if that were the case then they're not really pulling photons from nothing, they're using existing energy and turning it into photons.
Originally posted by CLPrime
reply to post by Dagar
Now ask how much energy went into getting those virtual photons to hang around long enough to measure them. The energy expended is far greater than that of the photons. Pulling them out of the vacuum, so-to-speak, violates nothing.