Scalable universal holonomic quantum computation realized with an adiabatic quantum data bus and potential implementation using superconducting flux qubits
Nicholas Chancellor, Stephan Haas
DOI 10.1103/PhysRevA.87.042321 · Physical Review A
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Abstract
In this paper we examine the use of an adiabatic quantum data transfer protocol to build a universal quantum computer. Single-qubit gates are realized by using a bus protocol to transfer qubits of information down a spin chain with a unitary twist. This twist arises from altered couplings on the chain corresponding to unitary rotations performed on one region of the chain. We show how a controlled-not gate can be realized by using a control qubit with Ising-type coupling. The method discussed here can be extended to nonadiabatic quantum bus protocols. We also examine the potential of realizing such a quantum computer by using superconducting flux qubits.
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