Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Physicists create superatom

13.01.2015

The motto “United we are strong“ is also valid in the quantum world.

Under appropriate conditions, a cloud of several hundred atoms can behave like a single atom, virtually developing super-power. Upon excitation with an ultraviolet laser into highly excited states, the atoms start to interact with each other.

This interaction can be made so strong that exactly one atom of the cloud is excited and the excitation of two or more atoms is suppressed. Because every atom in the cloud can be the chosen one, quantum mechanics tell us that in such a situation, all possibilities are realized simultaneously.

The atoms are therefore connected with each other and constitute a single object – a superatom – with a hundred times enhanced excitation probability as compared to a single atom.

The groups of Prof. Herwig Ott and Prof. Michael Fleischhauer from the University of Kaiserslautern have shown how such a superatom can be created und under which conditions the above mentioned properties can be observed.

Superatoms are not only fascinating physical objects, they bear also great potential for the future application in quantum information processing.

The study has been published in the highly renowned journal “Nature Physics”. DOI:10.1038/nphys3214

Contact:
Prof. Dr. Herwig Ott, Tel.: 0631/205-2817, E-Mail: ott@physik.uni-kl.de
Prof. Dr. Michael Fleischhauer, Tel.: 0631/205-3206, E-Mail: mfleisch@physik.uni-kl.de

Weitere Informationen:

http://www.uni-kl.de

Thomas Jung | Technische Universität Kaiserslautern

More articles from Physics and Astronomy:

nachricht UNH scientists help provide first-ever views of elusive energy explosion
16.11.2018 | University of New Hampshire

nachricht NASA keeps watch over space explosions
16.11.2018 | NASA/Goddard Space Flight Center

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: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Optical Coherence Tomography: German-Japanese Research Alliance hosted Medical Imaging Conference

19.11.2018 | Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

 
Latest News

Controlling organ growth with light

19.11.2018 | Life Sciences

New way to look at cell membranes could change the way we study disease

19.11.2018 | Life Sciences

Optical Coherence Tomography: German-Japanese Research Alliance hosted Medical Imaging Conference

19.11.2018 | Event News

VideoLinks
Science & Research
Overview of more VideoLinks >>>