Switchable coupling between charge and flux qubits
arXiv:cond-mat/0703012 · doi:10.1103/PhysRevB.76.024517
Abstract
We propose a hybrid quantum circuit with both charge and flux qubits connected to a large Josephson junction that gives rise to an effective inter-qubit coupling controlled by the external magnetic flux. This switchable inter-qubit coupling can be used to transfer back and forth an arbitrary superposition state between the charge qubit and the flux qubit working at the optimal point. The proposed hybrid circuit provides a promising quantum memory because the flux qubit at the optimal point can store the tranferred quantum state for a relatively long time.
5 pages, 1 figure
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Cited by in corpus (6)
- Topologically Protected Quantum State Transfer in a Chiral Spin Liquid
- Protecting entanglement in superconducting qubits
- Criticality-enhanced quantum sensor at finite temperature
- Quantum deficits and correlations of two superconducting charge qubits
- Dissipative dynamics of superconducting hybrid qubit systems
- Overcoming limitations on gate fidelity in noisy static exchange-coupled surface qubits