德科学家实验动摇相对论:我们突破了光速
坎特.尼米兹为君特.尼米兹之误;科布伦次通译科布伦茨。另,Dr Alfons Stahlhofen是科布伦茨-兰道大学物理学教授;Dr Guenter Nimtz其实是科隆大学教授,在科布伦茨-兰道大学只是兼职。
德国物理学家宣布,实验突破光速纪录
据英国《每日邮报》报道,科学家过去认为,光速是人类无法超越的速度限制。但是两位德国科学家现在声称,他们的实验已经证明要比光速行进得更快是有可能的。
这个惊人的结论与爱因斯坦狭义相对论的重要原则是矛盾的。这条原则是:任何事物的速度在任何情况下都不能比每秒186000英里的速度(即光速, 299,792,458米/秒)更快。从理论上来说,比光的速度更快,就意味着逆转了时间。如果根据传统物理学进行推论,也就是说一位移动速度超过光速的宇航员在离开前就已经到达目的地了。
但是德国物理学家声称,他们已经利用奇特的量子隧道效应,迫使光克服它自己的速度限制。在量子隧道现象中,粒子聚集能量,可穿越一个似乎无法穿越的障碍。他们的实验主要集中在微波光子通过两个棱镜时的传播上。当他们把两个棱镜移开时,大部分光子被它们遇到的第一个棱镜反射到远处,再被一个检波器捕获。但是一小部分光子似乎通过一个将它们分开的裂缝继续前进,就好像两个棱镜仍然呆在一起。
尽管这些光子行进的距离更远,但是它们与被反射的光子一样,在同一时间到达检波器。这指出光子在两个棱镜间的传输速度比光速更快。科布伦次大学的坎特·尼米兹博士表示:“目前这是我知道的唯一一个违背了狭义相对论的实验。”
'We have broken speed of light'
By Nic Fleming, Science Correspondent
Last Updated: 12:01am BST 16/08/2007
A pair of German physicists claim to have broken the speed of light - an achievement that would undermine our entire understanding of space and time.
According to Einstein's special theory of relativity, it would require an infinite amount of energy to propel an object at more than 186,000 miles per second.
However, Dr Gunter Nimtz and Dr Alfons Stahlhofen, of the University of Koblenz, say they may have breached a key tenet of that theory.
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The pair say they have conducted an experiment in which microwave photons - energetic packets of light - travelled 'instantaneously' between a pair of prisms that had been moved up to 3ft apart.
Being able to travel faster than the speed of light would lead to a wide variety of bizarre consequences.
For instance, an astronaut moving faster than it would theoretically arrive at a destination before leaving.
The scientists were investigating a phenomenon called quantum tunnelling, which allows sub-atomic particles to break apparently unbreakable laws.
Dr Nimtz told New Scientist magazine: 'For the time being, this is the only violation of special relativity that I know of.'
※※※※※※ 我的新论文《用中智学分析和改造狭义相对论》,没有被《前沿科学》采纳的文章。http://www.bjxdl.net/bbs/ViewFile.asp?FileName=20074291414414.rar
用winrar解压缩后就可以阅读 |