Listening to the quantum vacuum: a perspective on the dynamical Casimir effect

Q4 Physics and Astronomy

Europhysics News Pub Date : 2020-07-01 DOI:10.1051/epn/2020402

G. Paraoanu, G. Johansson

引用次数: 2

Abstract

Modern quantum field theory has offered us a very intriguing picture of empty space. The vacuum state is no longer an inert, motionless state. We are instead dealing with an entity teeming with fluctuations that continuously produce virtual particles popping in and out of existence. The dynamical Casimir effect is a paradigmatic phenomenon, whereby these particles are converted into real particles (photons) by changing the boundary conditions of the field. It was predicted 50 years ago by Gerald T. Moore and it took more than 40 years until the first experimental verification.

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聆听量子真空:动态卡西米尔效应的视角

现代量子场论为我们提供了一幅非常有趣的真空图景。真空状态不再是惰性的、不动的状态。相反，我们面对的是一个充满波动的实体，它不断地产生虚粒子，时而出现，时而消失。动态卡西米尔效应是一种范例现象，通过改变场的边界条件，这些粒子转化为实粒子(光子)。杰拉尔德·t·摩尔(Gerald T. Moore)在50年前就预言了这一现象，直到40多年后才进行了第一次实验验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Europhysics News Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.50

自引率

0.00%

发文量

期刊介绍： Europhysics News is the magazine of the European physics community. It is owned by the European Physical Society and produced in cooperation with EDP Sciences. It is distributed to all our Individual Members and many institutional subscribers. Most European national societies receive EPN for further distribution. The total circulation is currently about 25000 copies per issue. It aims to provide physicists at all levels, ranging from post graduate students to senior managers working in both industry and the public sector, with a balanced overview of the scientific and organizational aspects of physics and related disciplines at a European level. Sections covered: ◦Activities ◦Features ◦News and views