We give a tight characterization of the relation between loss tolerance and error rate of the
most popular protocol for quantum position verification, which is based on BB84 states …

Port-based teleportation (PBT) is a variant of quantum teleportation that, unlike the canonical
protocol by Bennett et al., does not require a correction operation on the teleported state …

We investigate the extent to which two particles can be maximally entangled when they are
also similarly entangled with other particles on a complete graph, focusing on Werner …

In this work we study quantum position verification with continuous-variable quantum states.
In contrast to existing discrete protocols, we present and analyze a protocol that utilizes …

Due to its fundamental principles, quantum theory holds the promise to enhance the security
of modern cryptography, from message encryption to anonymous communication, digital …

We introduce a quantum cloning game in which $ k $ separate collaborative parties receive
a classical input, determining which of them has to share a maximally entangled state with …

Loss of inputs can be detrimental to the security of quantum position verification (QPV)
protocols, as it may allow attackers to not answer on all played rounds, but only on those …

Motivated by the fact that coherent states may offer practical advantages it was recently
shown that a continuous-variable (CV) quantum position verification (QPV) protocol using …

Many thanks to Matthias Christandl, Ion Nechita, Michał Studziński, and Mio Murao for their
kind invitations and for organising my academic visits. Each of these visits was not only …

Learning a hidden property of a quantum system typically requires a series of interactions. In
this work, we formalise such multi-round learning processes using a generalisation of …