Hybridized solid-state qubit in the charge-flux regime
arXiv:cond-mat/0409010 · doi:10.1103/PhysRevB.73.014510
Abstract
Most superconducting qubits operate in a regime dominated by either the electrical charge or the magnetic flux. Here we study an intermediate case: a hybridized charge-flux qubit with a third Josephson junction (JJ) added into the SQUID loop of the Cooper-pair box. This additional JJ allows the optimal design of a low-decoherence qubit. Both charge and flux noises are considered. Moreover, we show that an efficient quantum measurement of either the current or the charge can be achieved by using different area sizes for the third JJ.
7 pages, 5 figures. Phys. Rev. B, in press
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Cited by in corpus (7)
- A Quantum Engineer's Guide to Superconducting Qubits
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Topological states and braiding statistics using quantum circuits
- Mirror, mirror: Landau-Zener-Stuckelberg-Majorana interferometry of a superconducting qubit in front of a mirror
- Spectroscopy of superconducting charge qubits coupled by a Josephson inductance
- Synthesis of maximally entangled mixed states and disentanglement in coupled Josephson charge qubits
- Dynamics of Bloch vectors and the channel capacity of a non identical charged qubit pair