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 …

Is entanglement an exclusive feature of quantum systems, or is it common to all non-
classical theories? And if this is the case, how strong is quantum mechanical entanglement …

Recently, table-top experiments involving massive quantum systems have been proposed to
test the interface of quantum theory and gravity. In particular, the crucial point of the debate …

We present a new characterization of quantum theory in terms of simple physical principles
that is different from previous ones in two important respects: first, it only refers to properties …

We provide a reformulation of finite dimensional quantum theory in the circuit framework in
terms of mathematical axioms, and a reconstruction of quantum theory from operational …

The formalism of generalized probabilistic theories (GPTs) was originally developed as a
way to characterize the landscape of conceivable physical theories. Thus, the GPT …

The phenomenon of data hiding, ie the existence of pairs of states of a bipartite system that
are perfectly distinguishable via general entangled measurements yet almost …

Predictions for measurement outcomes in physical theories are usually computed by
combining two distinct notions: a state, describing the physical system, and an observable …

It is a fundamental prediction of quantum theory that states of physical systems are
described by complex vectors or density operators on a Hilbert space. However, many …

I provide operational postulates for quantum theory. These involve certain operational
notions. Systems come in different types, a, b, c,\dots. A maximal set of distinguishable states …