Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Spooky Quantum-Effects in Diamond

06.06.2008
Researchers from the 3. Physikalisches Insitut of the University of Stuttgart for the first time achieved to systematically create entangled quantum states in diamond.

As these results were obtained under ambient conditions they make diamond an ideal candidate for building a quantum computer working at room temperature. This seems to be impossible for other materials. The work is published in the prestigious magazine Science appearing on 6 June 2008.*)

Physicists describe the world of atoms by quantum mechanics. One of its strangest characteristics allows one to link two objects without any noticeable interaction even over long distances. No wonder Einstein called this a spooky interaction. Nowadays entanglement is proven to exist without doubt. One of the most spectacular experiments based on this unusual characteristic is quantum teleportation where the properties of one quantum object are transferred to another one at a remote location.

Nevertheless this effect is very sensitive to any perturbations. Thus physicists in most of the cases have to work under extreme conditions like temperatures close to the absolute Zero point to entangle quantum objects. This is not necessary in diamond, as has been shown by scientist from Stuttgart. In their experiments they shot Nitrogen atoms into the diamond lattice at high speed. These impurities are detectable by their fluorescence and they change the diamond color to pink. Because of its unmatched stiffness the diamond lattice is shielding the Nitrogen atoms and thus allows detecting quantum effects such as entanglement under ambient conditions.

This gave the researchers from Stuttgart the opportunity to create suitable quantum states among the building blocks of the diamond lattice, namely the Carbon atoms. One percent of those Carbon atoms possess a magnetic moment what allows them to interact with an implanted Nitrogen atom in close vicinity. This interaction was used to individually address the Carbon atoms which have been entangled in the end. This is one of the major milestones on the way towards a quantum computer, a technology supposed to build ultrafast computers.

Andrea Mayer-Grenu | alfa
Further information:
http://www.uni-stuttgart.de

More articles from Physics and Astronomy:

nachricht First chip-scale broadband optical system that can sense molecules in the mid-IR
24.05.2018 | Columbia University School of Engineering and Applied Science

nachricht Nuclear physicists leap into quantum computing with first simulations of atomic nucleus
24.05.2018 | DOE/Oak Ridge National Laboratory

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

When corals eat plastics

24.05.2018 | Ecology, The Environment and Conservation

Surgery involving ultrasound energy found to treat high blood pressure

24.05.2018 | Medical Engineering

First chip-scale broadband optical system that can sense molecules in the mid-IR

24.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>