科学家制造原子气体首次实现低于绝对零度状态

理论上来说，如果这一情形倒转，更多的粒子获得更高的能量而不是降低其能量，那么整个你所观察的温度计读数就必须跟着整个颠倒过来，而你所读出的温度值也应该从正数变成负数。

誰能夠解釋這一段文字？！

為什麼粒子獲得能量，溫度會不升反降了～

原始新闻在：
http://www.nature.com/news/quant ... solute-zero-1.12146
新闻后面的一个很深刻的评价
Xiao XU said:
    I agree with Anand Ramanathan.The title is rather misleading.Negtive temprature is an old and popular conception since LASER has been found. If the stable state at negtive temprature of the atom gas must be sticked by the Laser light outside the gas system,then the system is not such that stable.The system will collapse inwards while the Laser stop working.I really this is an interesting experiment,but I do not think it is a piece of big news.


理解这篇文章负温度概念的资料
http://en.wikipedia.org/wiki/Negative_temperature