The internet has had a revolutionary impact on our world. The vision of a
quantum internet is to provide fundamentally new internet technology by enabling
quantum communication between any two points on Earth. Such a quantum internet
can —in synergy with the “classical” internet that we have today—connect quantum
information processors in order to achieve unparalleled capabilities that are
provably impossible by using only classical information.
At present, such technology is under development in physics labs around the
globe, but no large-scale quantum network systems exist. We start by providing a
gentle introduction to quantum networks for computer scientists, and briefly
review the state of the art. We highlight some of the many open questions to
computer science in the domain of quantum networking, illustrated with a very
recent result realizing the first quantum link layer protocol on a programmable
3 node quantum network based on Nitrogen-Vacancy Centers in Diamond.
We close by providing a series of pointers to learn more, as well as tools to
download that allow play with simulated quantum networks without leaving your
home.
Information about the series and recordings of previous talks can be found at
https://www.mpi-inf.mpg.de/departments/algorithms-complexity/quantum-lecture-series