听个报告《Making Mini Big Bangs at the Large Hadron Collider》，

   Prof. Evans在伯明翰大学物理系和欧洲高速粒子实验室(瑞士)工作，研究了宇宙大爆炸后百万分之一秒后的混沌态，创造出迄今为止的最高温和最大密度，该极端条件被形象的称为a soup of elementary particles。

    最高温度比太阳内部高成千上万倍(大概10^4，没记住)。

    我很好奇：

  （1）这么高的温度，不把地球上的任何材料都融化（包括空气）了吗？

  （2）产生温度的载体是怎么？这载体怎么没融化？

  （3）当时是怎么测量的？测量工具是什么？

  （4）这不是极恐怖的武器吗？

    当然我没问，他们好多大牛同行在交流，我，。。。，衣服没赶拍，衣袖没敢挥，走了。

   另一个想过，与此报告无关的一个问题：

   （5）有没有超光速运动的物体？

你说没有，我反驳：超光速运动的物体你根本看不见，因为你的目光没有他跑的快，你咋知道没有？

你说有，同理，他跑那么快，你咋知道他有？

是不是貌似接近或达到光速的物体都已经转化为一缕青烟（能量）了？如果这样，光具有波粒二相性，也即光本身也是粒子，光自身咋没冒烟？难道我们之所以能看到“光”，就是因为它冒的烟？

    总之越想越不好想，特别希望研究物理，尤其高能物理的人给解释解释。

【报告摘要】

By colliding lead nuclei together at practically the speed of light, using the CERN LHC, Professor Evans' team create the highest temperatures and densities ever produced in an experiment and recreate the conditions which are thought to have existed just a millionth of a second after the Big Bang. Under such extreme conditions, matter as we know it ‘melts’ into a soup of elementary particles called quarks and gluons, known as a Quark-Gluon Plasma (QGP).   By creating and studying this exotic state of matter we not only learn more  about the very early Universe but about the strongest force known to science, aptly called the Strong Force. This force not only binds the nuclei of atoms together but is responsible for 99% of the mass of all visible matter in the Universe.  

【作者简介】

Professor Evans will give a basic introduction to our current knowledge of elementary particles, the building blocks of matter, and the forces which act between them before describing the QuarkGluon Plasma and how to make it. Some key features of the CERN LHC and the ALICE experiment at CERN will be presented together with some key results.

Professor David Evans

Professor in High Energy Physics

School of Physics and Astronomy
College of Engineering and Physical Sciences