Call for open problems in quantum information

Do you feel that there are fundamental questions in quantum information theory which are not receiving enough attention? Is there a technical difficulty that you encounter over and over in the course of your research?
Those are not your problems only: they are our problems, too. Share them with the community and help quantum information science grow!

From 2017, the Institute for Quantum Optics and Quantum Information (IQOQI) in Vienna, together with Reinhard Werner and a team of experts, will take care of his list of Open Problems in Quantum Information. You can find the new website here:

Until its cessation in 2006, this list not only provided an accurate picture of research in quantum information theory, but also helped shape its course. Now that most of the problems in the list are closed, we feel that it is time to revive it. Under the supervision of Prof. Reinhard Werner, our team of voluntary administrators will add new questions to the list and update the status of each problem until its successful resolution.

We hence announce a call for:

Open problems in quantum information theory

We are looking for specific questions of general interest, such as:

“Devise an algorithm to decide if a bipartite POVM can be approximately realized via LOCC operations”

“Are there Bell inequalities with finitely many inputs and outputs whose maximal quantum value can only be achieved by infinite dimensional quantum systems?”

“Find an example of bipartite bound information”

Our team will not consider questions which are:

a) Too vague/unrealistic. E.g.:
“Derive all quantum algorithms”.

b) Too narrow. E.g:
“Find a proof of multiplicativity for the two-Pauli qubit channel which does not use unitary equivalence to channels with negative multipliers.”

c) Completely irrational E.g.:
“Can I use Bell’s theorem to reanimate the dead?”

Interested parties, please send your proposals via our online form: