Quantum information theory is a branch of science at the frontier of physics, mathematics,
and information science, and offers a variety of solutions that are impossible using classical …

Phase retrieval, ie the problem of recovering a function from the squared magnitude of its
Fourier transform, arises in many applications, such as X-ray crystallography, diffraction …

Quantum parameter estimation promises a high-precision measurement in theory; however,
how to design the optimal scheme in a specific scenario, especially under a practical …

Without Niels Bohr, QBism would be nothing. But QBism is not Bohr. This paper attempts to
show that, despite a popular misconception, QBism is no minor tweak to Bohr's interpretation …

It is often of interest to identify a given number of points in projective space such that the
minimum distance between any two points is as large as possible. Such configurations yield …

We identify five selected open problems in the theory of quantum information, which are
rather simple to formulate, are well studied in the literature, but are technically not easy. As …