Date of Award
Doctor of Philosophy (PhD)
Quantum information processors are predicted to enable a significant speedup in solving certain classes of problems compared to their classical counterparts. For one scheme of a processor implementation, required elements include qubits with long coherence times, laser-induced universal gates, information transport, and motional-state initialization using a second coolant ion species. Techniques described in this thesis include the use of a multiple electrode segmented trap, wherein information transport is achieved through the transport of qubit ions between spatially distinct locations. While experiment timescales had previously been dominated by ion transport and re-cooling of motional states, I have achieved transport and separation of qubit ions on timescales comparable to quantum logic gates. This work has been extended to achieve fast transport of qubit and coolant two-species ion chains. The developed techniques for ion transport result in low motional excitations, reducing the need for re-initialization of ion motional states. This can enable significant improvement in the operation time of an ion-based quantum information processor.
Bowler, Ryan, "Coherent Ion Transport in a Multi-electrode Trap Array" (2014). Physics Graduate Theses & Dissertations. 130.