Featured Research

from universities, journals, and other organizations

Unruly plasmas

Date:
August 6, 2013
Source:
Christian-Albrechts-Universitaet zu Kiel
Summary:
Physicists performed a series of exact computer simulations of a liquid layer of charged particles (Plasma) and cooled it rapidly. According to the text book theorem the fluid would crystallize instantaneously when it is cooled, no matter whether a magnetic field is present or not. "We cooled the liquid very quickly, and in the presence of a strong magnetic field we observed a result that we first could not believe: the system remained fluid for a very long time," one of the researchers said.

The physicists performed a series of exact computer simulations of a liquid layer of charged particles (Plasma) and cooled it rapidly. According to the text book theorem the fluid would crystallize instantaneously when it is cooled, no matter whether a magnetic field is present or not. "We cooled the liquid very quickly, and in the presence of a strong magnetic field we observed a result that we first could not believe: the system remained fluid for a very long time," says Löwen.

The scientists from Düsseldorf and Kiel came up with a very simple explanation for this unexpected behaviour: the rapid cooling prevents that the particles settle in the energetically lowest state (the crystal). "Whenever the particles start to descend towards the valley, immediately their trajectory is bent upward again by the magnetic field. The particle circle the 'drain', but never reach it," adds Bonitz.

The fact that a cold system can remain fluid -- which means very mobile -- for a long time may have far-reaching consequences for a large number of systems that are subject to strong magnetic fields -- including the evolution cycle of compact stars but also fluids in the laboratory.

The results were published in the journal Physical Review Letters.


Story Source:

The above story is based on materials provided by Christian-Albrechts-Universitaet zu Kiel. Note: Materials may be edited for content and length.


Journal Reference:

  1. T. Ott, H. Löwen, and M. Bonitz. Magnetic field blocks two-dimensional crystallization in strongly coupled plasmas. Physical Review Letters, 2013 DOI: 10.1103/PhysRevLett.111.065001

Cite This Page:

Christian-Albrechts-Universitaet zu Kiel. "Unruly plasmas." ScienceDaily. ScienceDaily, 6 August 2013. <www.sciencedaily.com/releases/2013/08/130806111153.htm>.
Christian-Albrechts-Universitaet zu Kiel. (2013, August 6). Unruly plasmas. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2013/08/130806111153.htm
Christian-Albrechts-Universitaet zu Kiel. "Unruly plasmas." ScienceDaily. www.sciencedaily.com/releases/2013/08/130806111153.htm (accessed July 29, 2014).

Share This




More Matter & Energy News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Lithium Battery 'Holy Grail' Could Provide 4 Times The Power

Lithium Battery 'Holy Grail' Could Provide 4 Times The Power

Newsy (July 28, 2014) — Stanford University published its findings for a "pure" lithium ion battery that could have our everyday devices and electric cars running longer. Video provided by Newsy
Powered by NewsLook.com
The Carbon Trap: US Exports Global Warming

The Carbon Trap: US Exports Global Warming

AP (July 28, 2014) — AP Investigation: As the Obama administration weans the country off dirty fuels, energy companies are ramping-up overseas coal exports at a heavy price. (July 28) Video provided by AP
Powered by NewsLook.com
Shipping Crates Get New 'lease' On Life

Shipping Crates Get New 'lease' On Life

Reuters - Business Video Online (July 25, 2014) — Shipping containers have been piling up as America imports more than it exports. Some university students in Washington D.C. are set to get a first-hand lesson in recycling. Their housing is being built using refashioned shipping containers. Lily Jamali reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) — Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins