Microscopy & Microtechniques

  • Scientists create light in a vacuum

Scientists create light in a vacuum

Nov 17 2011 Read 2240 Times

Scientists have succeeded in creating light from a vacuum, proving that a vacuum is by no means empty nothingness.

A team from Chalmers University of Technology published the results following the success, an effect which was first predicted some 40 years ago when scientists noted that 'virtual particles' exist within a vacuum, so called because of their transitory lifespan.

Chalmers scientist Christopher Wilson and his team created the effect by getting photons to leave their virtual state and become real photons, generating measurable light.

"Relatively little energy is therefore required in order to excite them out of their virtual state. In principle, one could also create other particles from vacuum, such as electrons or protons, but that would require a lot more energy," added Goran Johansson, associate professor of Theoretical Physics.

The experiment is valuable because it is believed that vacuum fluctuations may have a connection with 'dark energy' which drives the accelerated expansion of the universe.

Posted by Neil Clark

Read comments0

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.


Digital Edition

Lab Asia February 2019

February 2019

In this edition Articles - Detection of molecular markers in aquatic sediments by ion profi les obtained by GC/MS system - Fighting the Resistance: How Rapid Microbial ID with MALDI MS and A...

View all digital editions

Events

BioPharma World Expo 2019

Feb 20 2019 Mumbai, India

Medical Fair India 2019

Feb 21 2019 New Delhi, India

Biotech World

Feb 25 2019 Moscow, Russia

China Lab 2019

Feb 26 2019 Guangzhou, China

SmartLab Exchange

Feb 27 2019 Berlin, Germany

View all events