Newsletter registration

By using our website, you are agreeing to cookies being stored and Google Analytics being used on your device in order to offer the best possible service. You can find more information on thishere.
Austria.
Where Your Profits Grow Sky High.

More than the sum of its parts: collective calculation of quantum objects

Photo: Vienna University of Technology © Photo: Vienna University of Technology

researchers explained in "Nature Physics” how one makes collective calculations.

Atoms, consisting of an even number of protons, neutrons and electrons and thus have an “integer spin” come close to absolute zero in a separate state of matter. They form a so-called Bose-Einstein condensate (BEC). In this case, the individual atoms of this atomic cloud completely lose their individuality, and behave as a common quantum object. This is not simply the sum of the individual parts. Such quantum systems can only be simply calculated when they consist of just a few individual parts. Only rough approximations can be used to describe an atomic cloud with thousands of particles.

Kaspar Sakmann of the Institute of Atomic and Subatomic Physics at the Vienna University of Technology and his colleague Mark Kasevich of Stanford University, USA showed that such effects can also be calculated in BEC, such as quantum waves. “First we calculate the probability of the first particle being measured on a certain position. The probability distribution of the second particle depends on where the first particle has been found, the position of the third particle depends on the first two and so on,” Sakmann explained. In order to be able to describe the position of the very last particle, all the other positions have to be known.

As a result, not only quantum waves in colliding BEC can be calculated, but also certain vortices in the condensates which are stirred with a laser beam. Thus the correlations among the particles can be correctly determined, and also in other quantum systems if certain modifications are carried out, according to the scientists. 

Share on Facebook Share on Facebook Share on Twitter Share on Twitter Share on Linkedin Share on Linkedin

Testimonials

Events

Meet us at events, seminars and trade shows - worldwide.

  • 4. Mittelstandsforum Nordrhein-Westfalen

    18.06.2019, Dusseldorf, Germany

  • Expand to Austria

    26.06.2019, Brescia, Italy

Austria Map

Find the perfect location for your company

Austria stands out due to its long-term reliable and stable conditions. These features are particularly important for a research-based company such as Boehringer Ingelheim. Furthermore, Vienna is a city with a good research infrastructure and a high quality of life, and is thus also an interesting place for highly qualified employees from Austria and abroad.

Boehringer Ingelheim

Logo
More testimonials

news from the business location Austria

A.T. Kearney: Austria improves in the investment ranking

The inflows related to foreign direct investments in Europe in 2018 fell by 73 percent to USD 100 billion from the prior-year level of USD 372 billion.

Innovations from Austria for the Logistics Sector

At the present time there are many influencing factors which pose challenges to the supply chain and logistics management. Solutions in this area are frequently developed by startups, also from Austria. Several of them will present their innovations at the Austrian Logistics Day and Logistics Future Lab.

More news All blog posts