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.

Quantum communication: how to outwit noise

quantum communication © IQOQI, Harald Ritsche

Nowadays we communicate via radio signals and send electrical pulses through long cables. However, this could soon change. Scientists are working intensively on developing methods for quantum information transfer. This would enable tap-proof data transfer or perhaps even the linking of quantum computers one day.

In order for this to happen, quantum information transfer requires reliable information transfer from one quantum system to the other, which is extremely difficult to achieve. Independently, two research teams, one at the University of Innsbruck and the other at the Vienna University of Technology, have simultaneously developed a new quantum communication protocol. This protocol enables reliable quantum communication even despite contaminating noise. Both research groups work with the same basic concept. To make the protocol immune to the noise, they add an additional element, a so-called quantum oscillator, at both ends of the quantum channel.

Superconducting qubits, in particular, are promising elements for future quantum technologies. They are tiny circuits that can assume two different states at the same time. Contrary to conventional light switches that can be either turned on or turned off, the laws of quantum physics allow a qubit to assume any combination of these states, which is called quantum superposition.

To transfer this quantum state from one superconducting qubit to another requires microwave photons, which are already used today for classic signal transfer.  Reliably transferring quantum information via a microwave regime has been considered impossible up until now, due to the fact that the constant thermal noise completely superposes the weaker quantum signal.

New transfer protocol

The two research groups from the Vienna University of Technology and the University of Innsbruck have now demonstrated that these obstacles are not impossible to overcome as previously assumed. In collaboration with teams from Harvard and Yale (USA) they have been able to develop a transfer protocol that is immune to the inevitable noise.

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.

  • Doing business in Austria

    20.11.2018, Žilina, Slovakia

  • Meet us at: Go Tech Arena Forum

    20.11.2018, Moscow, Russia

Austria Map

Find the perfect location for your company

One of Austria's key strengths as a business destination is its highly qualified and motivated skilled workforce for research and development, especially in the scientific sector.

Nestlé Austria

Logo
More testimonials

news from the business location Austria

Med University of Graz: New center for metabolism research

The kick-off for the Integrative Metabolism Research Center at the Medical University of Graz took place.

Startup Hotspot Austria

The Austrian government expects its Land of Founders strategy to enhance the entrepreneurial spirit and the courage to set up companies. The objective is to transform Austria into the most founder-friendly country in Europe. The initiatives have already borne fruit. The startup scene in Austria has been experiencing a strong boom over years now.

More news All blog posts