Physical implementation of topologically decoherence-protected superconducting qubits

Abstract

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.

v3 submitted version. v4 accepted version, modified presentation, figure 2 added, conclusion removed for length's sake. To appear in Phys. Rev. A

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Cited by in corpus (8)

• Creation, manipulation, and detection of Abelian and non-Abelian anyons in optical lattices
• Implementing topological quantum manipulation with superconducting circuits
• Quantum computation in decoherence-free subspace with superconducting devices
• Simulation of the Majorana equation in circuit QED
• Realizing flexible two-qubit controlled phase gate with a hybrid solid-state system
• Transferring multiqubit entanglement onto memory qubits in a decoherence-free subspace
• Robust preparation and manipulation of protected qubits using time--varying Hamiltonians
• Detecting non-Abelian geometric phase in circuit QED