Navigation Links
En route to a quantum computer
Date:5/21/2012

The Volkswagen Foundation is financing a materials science project being conducted jointly by the universities in Mainz and Osnabrck in collaboration with the Jlich Research Center. The support is to be provided over a period of three years and will total 550,000. The project managers, Professor Dr. Angelika Khnle and Dr. Wolfgang Harneit of the Institute of Physical Chemistry at Johannes Gutenberg University Mainz (JGU), were notified of the grant in March 2012. This project is a continuation of a recently completed earlier project that was also financed by the Volkswagen Foundation. The overall objective of the projects is to demonstrate the technical feasibility of a quantum computer on the basis of electron spins. Quantum computers are theoretically capable of far more efficient calculations than those of today's silicon-based computers. However, the necessary materials that would make quantum computers suitable for everyday use have yet to be invented.

For its experiments, the project team working under Khnle and Harneit is using special fullerenes, soccer ball-shaped carbon molecules with enclosed nitrogen atoms. The electron spin of this nitrogen atom serves as a qubit, the quantum equivalent of the classic silicon-based computer bit. To read these qubits, the scientists have to insert the fullerenes in diamond nitrogen-vacancy centers, i.e., point defects in the diamond lattice, which can be scanned optically. It was Wolfgang Harneit who originated the idea of using fullerenes as qubits and who set out the original concepts in 2002.

In the first project, the researchers confirmed that the results of quantum calculations using fullerenes could be read with the aid of nitrogen-vacancy centers in diamonds. However, as the fullerenes failed to configure appropriately in the diamonds, it was not possible to perform coherent calculations. In the second project, the researchers plan to attach the fullerenes to carbon nanotubes and then insert these in diamonds. The resulting configuration should then make it possible to perform intelligible complex quantum calculations.

"We are working on quantum computers that are scalable because we are at the limits of silicon technology," says Angelika Khnle. "A quantum computer is a completely revolutionary type of computer and a successful implementation would have impressive capacity." The current project is entitled "Spin quantum computing based on endohedral fullerenes with integrated single-spin read-out via nitrogen vacancy centers in diamond." It will be sponsored through the Volkswagen Foundation's "Integration of Molecular Components in Functional Macroscopic Systems" program, just like its predecessor.

Angelika Khnle's research makes her an important contributor to the Molecularly Controlled Non-Equilibrium (MCNE) Cluster of Excellence at JGU, which is currently competing in the final round of Germany's Federal Excellence Initiative.


'/>"/>

Contact: Dr. Angelika Kuehnle
kuehnle@uni-mainz.de
49-613-139-23930
Johannes Gutenberg Universitaet Mainz
Source:Eurekalert

Related biology technology :

1. The Plasmodium vivax genome provides new routes and challenges in the global fight against malaria
2. Genetically engineered bacteria compute the route
3. Researchers take the inside route to halt bleeding
4. Berkeley researchers find new route to nano self-assembly
5. Light touch: Controlling the behavior of quantum dots
6. First tunable, noiseless amplifier may boost quantum computing, communications
7. Memoirs of a qubit: Hybrid memory solves key problem for quantum computing
8. Stanford: Quantum computing spins closer
9. U of T physicists squeeze light to quantum limit
10. Researchers measure elusive repulsive force from quantum fluctuations
11. Smallest ever quantum dots bring real world applications closer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/10/2017)... ... October 10, 2017 , ... ... program has won a US2020 STEM Mentoring Award. Representatives of the FirstHand program ... in Volunteer Experience from US2020. , US2020’s mission is to change the trajectory ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... process optimization firm for the life sciences and healthcare industries, announces a presentation ... San Francisco. , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” will ...
(Date:10/9/2017)... ... ... At its national board meeting in North Carolina, ARCS® Foundation ... Physics and Astronomy, has been selected for membership in ARCS Alumni Hall of ... Breakthrough Prize in Fundamental physics for the discovery of the accelerating expansion of the ...
(Date:10/7/2017)... WA (PRWEB) , ... October ... ... industry leader in Hi-C-based genomic technologies, launched its ProxiMeta™ Hi-C metagenome deconvolution ... ProxiMeta Hi-C kit and accompanying cloud-based bioinformatics software to perform Hi-C metagenome ...
Breaking Biology Technology:
(Date:4/17/2017)... Florida , April 17, 2017 NXT-ID, ... technology company, announces the filing of its 2016 Annual Report on ... and Exchange Commission. ... on Form 10-K is available in the Investor Relations section of ... as on the SEC,s website at http://www.sec.gov . ...
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
Breaking Biology News(10 mins):