Physical implementation of topologically decoherence-protected superconducting qubits
Zheng-Yuan Xue, Z. D. Wang, Shi-Liang Zhu
DOI 10.1103/PhysRevA.77.024301 · Physical Review A
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Abstract
We propose a scenario to physically implement a kind of topologically decoherence-protected qubit using superconducting devices coupled to a microwave cavity mode with unconventional geometric operations. It is shown that the two needed interactions for selective devices, which are required for implementing such protected qubits, as well as single-qubit gates, can be achieved by using the external magnetic flux. The easy combination of individual addressing with the many-device setup proposed in the system presents a distinct merit in comparison with the implementation of topologically protected qubits in a trapped-ion system.
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