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.

How long does a quantum leap take?

Quantum leap © Vienna University of Technology

Albert Einstein was the first to explain this phenomenon in 1905, when he spoke of "light quanta" (known today as photons). In tiny fractions of a second, they "jump" into another state when light falls on a material. This takes place so quickly that until now it has mostly been regarded as a sudden change of state. However, with the help of sophisticated experiments and calculations, the Vienna University of Technology has succeeded for the first time in precisely measuring the duration of this famous photoelectric effect. The researchers published the results in the scientific journal "Nature".

The change into another state takes place within attosecond, or billionths of a billionth of a second. In the initial step, the photoelectric effect was measured in the case of simply structured helium atoms. The results served as the reference scale for determining the effect for iodine atoms. Finally, a tungsten surface was examined.

The duration of the photoemission process depends on the initial state of the electrons. It ranges from 100 attoseconds for electronics in the inner shells of the tungsten atoms to 47 attoseconds for conduction band electrons which pass the finish line faster on average. The measurements were carried out at the Max Planck Institute for Quantum Optics in Garching, Germany. 

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

Testimonials

Events

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

  • Cooperation Forum in Piešťany

    23.10.2018, Piešťany, Slovakia

  • Vienna Meets Milano

    23.10.2018, Milano, Italy

Austria Map

Find the perfect location for your company

The "mental closeness" of Austria to its neighbours is an important advantage for establishing new business contacts.

Ericsson Austria

Logo
More testimonials

news from the business location Austria

How long does a quantum leap take?

Due to its negligible effects, a quantum leap in physics is extremely difficult to observe.

Employer Branding: World’s most livable city attracts high potentials

Due to the country’s excellent education system, companies located in Austria can profit from highly-skilled employees, who in turn appreciate the unrivaled quality of life which the location can offer.

More news All blog posts