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21 - 22 June 2022, Barcelona

Telefonica's Diego Lopez & Antonio Pastor Perales on Quantum Communications

A short interview with Diego Lopez from Telefonica on Quantum Communications.
Find out more during their session 'Quantum Based Communication Explained' on the 19th November at 10:35 CET.

The presentation will cover the following points: 

  • Quantum Key Distribution: Is this the Future of Cyber Security?
  • Building the World’s First Integrated Quantum Communication Network
  • The applications of such quantum communication 

How will QKD be a benefit to optical networks in the short term?

Optical networks are required for QKD. Satellite solutions indeed exist, but are expensive and much less flexible if you compare it with fibre solution. At the end of the day, QKD will consolidate as an additional service for optical networks. Besides this, QKD needs optical technologies, such as single-photon detectors or photon generators, that can increase market products demand and research.

And we must not forget QKD is the first step in a more general Quantum Communications path. The technologies, service models and management mechanisms applicable to QKD will be the foundation for future Quantum Communications

What are/will be the challenges and/or risks of implementing QKD in optical networks?

The main challenge that QKD solutions face today is that we are using what is still a quite delicate technology, very much dependent on direct optical transmission, so it is limited in distance. Until quantum repeaters are available and/or longer distances become possible, the accepted solution for overcoming this limitation is the use of intermediate “trusted nodes” to go beyond current physical fiber limits. The bootstrap authentication of the service channel is also challenging because it cannot be based on the quantum channel itself, what imply temporary risk windows.

What does the future look like within the quantum communications and optical networks space?

QKD is the first quantum communications application. It is an ad-hoc solution for a specific problem (key distribution). A generalized solution that allows storing, transmitting, and processing qbits without collapsing or destroying them will trigger a new revolution on ITC. For example, Quantum Computers interconnected to make distributed computing and operations as classic computers do today. Optical networks are the best-positioned medium for quantum communication, based on their nature and the results already achieved by QKD solutions.

Want to hear more about Quantum Communications? Apply for your free operator delegate pass today!

If you are a representative from a telecom operator or data centre company, you qualify for a complimentary delegate ticket (value of €1,499).  

Not an operator or data centre? Please register for a delegate pass here.