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We give an overview of different paradigms for control of quantum systems and their applications, illustrated with specific examples. We further discuss the implications of fault-tolerance requirements for quantum process engineering using optimal control, and explore the possibilities for architecture simplification and effective control using a minimum number of simple switch actuators.
Qubit transport has been identified as vital in improving quantum error correction thresholds in scalable quantum computer architectures. Introducing practical transport in the solid-state is problematic, but in phosphorus in silicon implementations we have shown an interesting adiabatic protocol for qubit transfer, coherent tunneling adiabatic passage (CTAP). Here we review the role of CTAP as a...
The paper reviews a new adiabatic scheme - coherent spin transport by adiabatic passage (CSTAP) - for physical qubit transport particularly suited to atomic and solid-state systems. Several applications immediately follow, including a 2D Si:P donor electron spin architecture for quantum computing, and protocols for generating entangled states across non-local qubits.
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