Fast Entanglement Swapping and Quantum Logic Implementations on a Modular Quantum Computer Prototype

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In the field of quantum computing, information is encoded into quantum mechanical systems. It is possible to employ the quantum mechanical properties of these systems in order to process information at rates that are impossible to match using classical computers. The elementary unit of quantum computing is the qubit or quantum bit, in analogy to the classical bit. A useful quantum computer would need to be able to address millions of such qubits in order to outperform its classical counterpart.Trapped atomic ions are a well established platform to host qubits. Addressing small numbers of trapped ions has become a reliable procedure over the past decades, however it is infeasible to scale to large numbers of qubits using these traditional procedures due to a variety of hardware and engineering limitations. At Universal Quantum a modular approach for a trapped ion quantum computer is pursued. The aim is to be able to construct a large scale quantum computer out of individual modules that can perform basic quantum operations as stand alone units. In this approach quantum logic is implemented using global elds and electrical signals, similar to how transistors on classical chips are operated. My research objective is to demonstrate and characterise the distribution of quantum information in between these individual modules. The aim is to use electrical control signals to transfer qubits from one module to a neighbouring module while the qubits retain their encoded quantum information. A successful demonstration of this process would be a major step towards the realisation of a large scale ion based quantum computer.