Featured Research

from universities, journals, and other organizations

Point defects in super-chilled diamonds may offer stable candidates for quantum computing bits

Date:
October 13, 2011
Source:
American Institute of Physics
Summary:
Scientists test how the energy levels of electrons trapped in a defect in the diamond matrix shift with changing temperatures.

Diamond, nature's hardest known substance, is essential for our modern mechanical world -- drills, cutters, and grinding wheels exploit the durability of diamonds to power a variety of industries. But diamonds have properties that may also make them excellent materials to enable the next generation of solid-state quantum computers and electrical and magnetic sensors.

To further explore diamonds' quantum computing potential, researchers from the University of Science and Technology of China tested the properties of a common defect found in diamond: the nitrogen-vacancy (NV) center.

Consisting of a nitrogen atom impurity paired with a 'hole' where a carbon atom is absent from the matrix structure, the NV center has the potential to store information because of the predictable way in which electrons confined in the center interact with electromagnetic waves. The research team probed the energy level properties of the trapped electrons by cooling the diamonds to an extremely chilly 5.6 degrees Kelvin and then measuring the magnetic resonance and fluorescent emission spectra. The team also measured the same spectra at gradually warmer increments, up to 295 degrees Kelvin.

The results, as reported in the AIP's journal Applied Physics Letters, show that at temperatures below 100 Kelvin the electrons' transition energies, or the energies required to get from one energy level to the next, were stable. Shifting transition energies could make quantum mechanical manipulations tricky, so cooler temperatures may aid the study and development of diamonds for quantum computation and ultra-sensitive detectors, the authors write.


Story Source:

The above story is based on materials provided by American Institute of Physics. Note: Materials may be edited for content and length.


Journal Reference:

  1. X.-D. Chen, C.-H. Dong, F.-W. Sun, C.-L. Zou, J.-M. Cui, Z.-F. Han, and G.-C Guo. Temperature dependent energy level shifts of nitrogen-vacancy centers in diamond. Applied Physics Letters, 2011

Cite This Page:

American Institute of Physics. "Point defects in super-chilled diamonds may offer stable candidates for quantum computing bits." ScienceDaily. ScienceDaily, 13 October 2011. <www.sciencedaily.com/releases/2011/10/111011121405.htm>.
American Institute of Physics. (2011, October 13). Point defects in super-chilled diamonds may offer stable candidates for quantum computing bits. ScienceDaily. Retrieved August 2, 2014 from www.sciencedaily.com/releases/2011/10/111011121405.htm
American Institute of Physics. "Point defects in super-chilled diamonds may offer stable candidates for quantum computing bits." ScienceDaily. www.sciencedaily.com/releases/2011/10/111011121405.htm (accessed August 2, 2014).

Share This




More Computers & Math News

Saturday, August 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Google Mystery Barge Headed For The Scrap Yard

Google Mystery Barge Headed For The Scrap Yard

Newsy (Aug. 1, 2014) We may never know what was going on inside one of Google's mystery barges in Portland, Maine as it's now headed for the scrap yard. Video provided by Newsy
Powered by NewsLook.com
Escaping Email: Inspired Vision or Pipe Dream?

Escaping Email: Inspired Vision or Pipe Dream?

AP (Aug. 1, 2014) Dustin Moskovitz is plotting an escape from email, using his communications expertise in an attempt to change the way people connect at work, where the incessant drumbeat of email has become an excruciating annoyance. (Aug. 1) Video provided by AP
Powered by NewsLook.com
Google (Kind Of) Complies With 'Right To Be Forgotten Law'

Google (Kind Of) Complies With 'Right To Be Forgotten Law'

Newsy (July 31, 2014) Google says it is following Europe's new "Right To Be Forgotten Law," which eliminates user information upon request, but only to a certain degree. Video provided by Newsy
Powered by NewsLook.com
Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Newsy (July 31, 2014) The deal will help build a massive battery factory that Tesla says will produce 500,000 lithium batteries by 2020. Video provided by Newsy
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