In order to bring quantum networks into the real world, we would like to determine the
requirements of quantum network protocols including the underlying quantum hardware …

This article reviews recent hybrid approaches to optical quantum information processing, in
which both discrete and continuous degrees of freedom are exploited. There are well …

Practical schemes for measurement-device-independent quantum key distribution using
phase and path or time encoding are presented. In addition to immunity to existing …

We investigate the consequences of space-time being curved on space-based quantum
communication protocols. We analyze tasks that require either the exchange of single …

A protocol with the potential of beating the existing distance records for conventional
quantum key distribution (QKD) systems is proposed. It borrows ideas from quantum …

Memory dephasing and its impact on the rate of entanglement generation in quantum
repeaters is addressed. For systems that rely on probabilistic schemes for entanglement …

The rate at which quantum communication tasks can be performed using direct transmission
is fundamentally hindered by the channel loss. Quantum repeaters allow one, in principle, to …

We numerically study the distribution of entanglement between the Dutch cities of Delft and
Eindhoven realized with a processing-node quantum repeater and determine minimal …

We analyze an optomechanical system that can be used to efficiently transfer a quantum
state between an optical cavity and a distant mechanical oscillator coupled to a second …

This paper addresses multi-user quantum key distribution networks, in which any two users
can mutually exchange a secret key without trusting any other nodes. The same network …