Scientists break speed of light

[Gifted]

you need to know the state of the beam at the origin and destination; no information can be sent this way.

So you can't predict the state, like using a special path that can be relied upon to affect the beam in a known way, or something like that?

 

[blackholesun]

Originally posted by Gifted
So you can't predict the state, like using a special path that can be relied upon to affect the beam in a known way, or something like that?

Well then you change how the information is encoded. And that essentially ruins the information that was encoded on that state, making it even more impossible to predict even if you know the mechanism used to affect the beam.

 

[pilpaX]

It raced so fast the pulse exited a specially-prepared chamber before it even finished entering it.

is it me, or this is some strange stuff.
how this pulse can exit this chamber before it finished entering?

The key to the experiment was that the pulse reformed before it could have gotten there by simply travelling through empty space. This means that, when the waves of the light distorted, the pulse traveled forward in time.

time travel... foward in time?

 

[blackholesun]

Originally posted by pilpaX
is it me, or this is some strange stuff.
how this pulse can exit this chamber before it finished entering?



time travel... foward in time?

No.....just crappy reporting and misconception. The phase velocity, think of it as a pattern, traveled faster than light. Not the group velocity of the light pulse. Two very different things.