这个宇宙
Professor Yash Pal clears up the misconception about Zero-Point Energy. This is not to say that other energy sources that can’t be harnessed. We only need to get our science straight and stop chasing false leads that some people continue to propagate on in these discussion lists for their own agendas which I believe is to slow our alternative energy movement.
Q.What is the concept behind Zero Point Energy? Can it be used to propel a spacecraft to the speed of light?
A.我发现一些问题来自您所看到的科幻电影或您阅读的书籍。这些电影或书籍借了本今科学的大量术语，然后踏上自己的花哨的航班。这是令人愉快的，通常非常有用。
But all the romance depicted there cannot be taken seriously. Let me see if I can make the basic ideas behind the term Zero Point Energy somewhat comprehensible. Some basic concepts and ideas are involved here.
当你服用一些材料时，说简单的气体并冷却它，你会逐渐减少其分子的热能。
The energy content would go on reducing while the gas turns into liquid and then perhaps a solid. You go on cooling till you approach a temperature close to zero degrees Kelvin. You cannot go below that temperature. This temperature is defined as Absolute Zero because all thermal motion comes to a stop. The fact that you cannot cool the sample any further inversely implies that you cannot extract any more energy from it.
它是绝对零可能永远不会获得的另一种问题。在这里，其他考虑因素播放。
These derive from quantum statistics and the uncertainty principle. If the particles of the material under consideration are identical bosons (in other words they have integral spins), they can all be in the same state.
相同的状态意味着它们可以具有相同的位置和动量，并且可能形成一种新的物质状态，称为Bose-Einstein冷凝物。
通过使用复杂的冷却和限制技术，在过去几年中已经实现了这种状态。当然，我们仍然必须尊重不确定性原则 - 这表明自己在这种简短和基本讨论中考虑无法考虑的兴趣和有趣的方式。
But let us now move to the exact question that had been raised.
对于玻斯，没有零点能量。但现在考虑具有半积分旋转的相同颗粒。这种颗粒受到不同的统计数据。
这由Pauli排除原则控制，使得只有一个粒子可以占用明确定义的量子状态。
如果一个粒子坐在最低能态状态，则该状态下没有空间，用于另一个源于相同的旋转和角动量。
无论系统的温度如何低，都会要求它转到下一个更高的能量状态。
例如，在核周围的零角动量的轨道中的轨道中的电子将在其具有相对的旋转方向时欢迎另一个类型的类型。
之后没有更多的空间能量状态。如果我们想到中微子的气体冷却到绝对零的温度，如果这个“不可触及的”原则，它们并不是在最低的零能量状态下！
他们中的许多人将不得不留在更高的能源states. Depending on the density of the neutrino gas, the Fermi energies of some of these particles could be significant. This is the energy we call the Zero Point Energy.
我没有看到这种能量如何以任何重要方式使用，更不用说完成加速航天器到高速和能量的壮举。
这个想象的概念最好留给少年科幻故事的领域。
