Physical implementation of topologically decoherence-protected superconducting qubits

Details Physical implementation of topologically decoherence-protected superconducting qubits Physical implementation of topologically decoherence-protected superconducting qubits

2007-10-12

arxiv.org/abs/0710.2407v4

Phys. Rev. A 77, 024301 (2008).

Physics

Quantum Physics

v3 submitted version. v4 accepted version, modified presentation, figure 2 added, conclusion removed for length's sake. To app

Scientific paper

10.1103/PhysRevA.77.024301

We propose a scenario to physically implement a kind of topologically decoherence-protected qubit using superconducting devices coupled to a micro-wave 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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