Fast and user-friendly quantum key distribution

Fast and User-friendly Quantum Key Distribution

Some guidelines for the comparison of different quantum key distribution experiments are proposed. An improved « plug & play » interferometric system allowing fast key exchange is then introduced. Self-alignment and compensation of birefringence remain. Original electronics implementing the BB84 protocol and allowing user-friendly operation is presented. Key creation with 0.1 photon per pulse a...

Bootstrapping Key Pre-Distribution: Secure, Scalable and User-Friendly Initialization of Sensor Nodes

To establish secure (point-to-point and/or broadcast) communication channels among the nodes of a wireless sensor network is a fundamental task. To this end, a plethora of (socalled) key pre-distribution schemes have been proposed in the past [1][2][3][4][5]. All these schemes, however, rely on shared secret(s), which are assumed to be somehow pre-loaded onto the sensor nodes. In this paper, we...

User-Friendly Workflows in Quantum Chemistry

Quantum chemical workflows can be built up within the science gateway MoSGrid (Molecular Simulation Grid). Complex workflows required by the endusers are dissected into smaller workflows which can be combined freely to larger meta-workflows. General quantum chemical workflows are described here as well as the real use case of a spectroscopic analysis resulting in an enduser desired meta-workflo...

Quantum Key Distribution

Entanglement and Quantum Key Distribution

Entanglement in quantum mechanics refers to particles whose individual states cannot be written without reference to the state of other particles. Such states are said to be non-separable, and measurements of the state of one entangled particle alter the state of all entangled particles. This unusual phenomena has applications in quantum teleportation, superdense coding, and various other appli...