Simulation Model for Atomic Ensemble based Quantum Repeaters and the Optimization of their Positioning

The quantum internet will allow for communication via qubits, enabling for improved clock synchronization, blind quantum computing and quantum key distribution. Key components of such a quantum network are quantum repeaters, which help to overcome the exponential loss of photons in optical fibers. In this thesis we focus on one type of quantum...

Quantum network routing via link prediction

A network of devices capable of transmitting quantum information called a quantum network has promising applications with vast benefits. One of the most near term achievable application is the quantum key distribution. It could be used for sharing a secret key between two end-users through any insecure authenticated communication channel. Other...

Measurement Light Bulb: Control

This document describes the design process the prototype of a measurement light bulb which is able to project spherical harmonics of orders 0-1-2. Photographs of these projections can be combined to represent many light distributions. The measurement light bulb can be used in the field of research focused on the computation of the illumination...

Quantum Algorithms and their Implementation on Quantum Computer Simulators

Quantum computation is becoming an increasingly interesting field, especially with the rise of real quantum computers. However, current quantum processors contain a few tens of error-prone qubits and the realization of large-scale quantum computers is still very challenging. Therefore, quantum computer simulators are particularly suitable for...

Planning Qubit Movements in Fully Connected Star Graphs

Building a working quantum computer brings many challenges to overcome. For quanum processors, promising qubits seem to be NV-centres in diamond. Such processor is divided into processing units (PUs), each comprising an NV-centre with several carbon spin qubits, and they are interconnected with each other by optical links. The qubits within a PU...