Faster light (Casimir vacuum and quantum tunnelling)
Raymond Y. Chiao was first to measure the quantum tunnelling time, which was found to be between 1.5 to 1.7 times the speed of light.
Einstein's equations of special relativity postulate that the speed of light in a vacuum is invariant in inertial frames. That is, it will be the same from any frame of reference moving at a constant speed. The equations do not specify any particular value for the speed of the light, which is an experimentally determined quantity for a fixed unit of length. Since 1983, the SI unit of length (the meter) has been defined using the speed of light.
The experimental determination has been made in vacuum. However, the vacuum we know is not the only possible vacuum which can exist. The vacuum has energy associated with it, unsurprisingly called the vacuum energy. This vacuum energy can perhaps be changed in certain cases.[38] When vacuum energy is lowered, light itself has been predicted to go faster than the standard value c.
Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/xva-Sld_lAY/story01.htm
king arthur there will be blood there will be blood nigel barker secret service fenway park philadelphia flyers
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.