Photons move faster than light !

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danmand

Well-known member
Nov 28, 2003
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Two researchers from the University of Koblenz claim to have proved
in an quantum-optic experiment that a tunnel effect make photons move faster than light. Others disagree.

http://ing.dk/artikel/80535
 
danmand said:
Two researchers from the University of Koblenz claim to have proved
in an quantum-optic experiment that a tunnel effect make photons move faster than light. Others disagree.

http://ing.dk/artikel/80535
Click to expand...

Is daar een vertaler die verkrijgbaar is op de plaats
(is there a translator on the site)
 
Nothing can move faster than light because according to Einstein's theory of relativity, the object would have infinite mass. But since photons have no mass to begin with, this could be possible for photons.
 
Greekster said:
...since photons have no mass to begin with, this could be possible for photons.
Click to expand...

Seem to remember doing math with problems that involved photons, and they had some mass, just no mass at rest. Could be wrong, it was some time ago.
 
Greek, it gets a lot more complicated than that.

There was an interesting experiment a year or so ago (in Australia?) where they were able to transport (star trek like) photons across a distance instantaneously. There was also a Canadian one where laser light traveled faster than c. The Canadian one sort of cheated in terms of the setup but the boundaries of science are always changing.

The whole bit about wormholes throws a monkey into the works too. Interesting stuff if you don't mind a bit of a headache.
 
Greekster said:
Nothing can move faster than light because according to Einstein's theory of relativity, the object would have infinite mass. But since photons have no mass to begin with, this could be possible for photons.
Click to expand...

Actually, tachyon particles move faster than light.
 
kitaa said:
I still think nothing moves faster than light.
Click to expand...

Quantum tunnel effects are are strange anyway. If a particle can
be at two different positions at the same time, then speed becomes strange also.
 
Particles with rest mass greater than zero are subject to the mass increase law which theoretically (and thus far, practically) prevents them from exceeding a speed of c. There is currently little to no reason however to assume that particles with rest mass less than zero do not exist. Negative mass objects would not be bound by the mass increase law.

It should also be pointed out that the speed of light can be manipulated under certain conditions. In most cases, the speed of light is slowed but in other cases (superluminal light propagation) light has been sped up.

Example of Ultraslow Light:
http://www.opticsexpress.org/viewmedia.cfm?id=85741&seq=0
 
OMG on my homeworld they would die laughing at you humans and your primitive science!
 
i know the pros (the positive cats) and cons ( they are negative cats)circle the neighborhood.. they go round and round..
 
Actually, a brain mathemetician in mexico has mathematically disproved einstein's theory about an object not being able to travel faster than light.....
 
Impossible....

Things are only impossible until they're done.

Eventually FTL (faster than light) travel will be possible.
 
I was in a job interview and I opened a book and started reading.
Then I said to the guy, "Let me ask you a question. If you are in a spaceship that is traveling at the speed of light, and you turn on the headlights, does anything happen?"
He said, "I don't know."
I said, "I don't want your job."
-- Steven Wright
 
Shallow Throat said:
I was in a job interview and I opened a book and started reading.
Then I said to the guy, "Let me ask you a question. If you are in a spaceship that is traveling at the speed of light, and you turn on the headlights, does anything happen?"
He said, "I don't know."
I said, "I don't want your job."
-- Steven Wright
Click to expand...

Hence why when the USS enterprise goes into warp the doppler effect distorts the light eminating from the ship.....
 
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