Full protection of superconducting qubit systems from coupling errors
arXiv:cond-mat/0407780 · doi:10.1103/PhysRevB.72.064511
Abstract
Solid state qubits realized in superconducting circuits are potentially extremely scalable. However, strong decoherence may be transferred to the qubits by various elements of the circuits that couple individual qubits, particularly when coupling is implemented over long distances. We propose here an encoding that provides full protection against errors originating from these coupling elements, for a chain of superconducting qubits with a nearest neighbor anisotropic XY-interaction. The encoding is also seen to provide partial protection against errors deriving from general electronic noise.
4 pages, 1 figure
References in corpus (14)
- Coherent Quantum Dynamics of a Superconducting Flux Qubit
- Quantum oscillations in two coupled charge qubits
- Complete Characterization of a Quantum Process: the Two-Bit Quantum Gate
- Demonstration of conditional gate operation using superconducting charge qubits
- Theory of Decoherence-Free Fault-Tolerant Universal Quantum Computation
- Spectroscopy on two coupled flux qubits
- Decoherence in Josephson-junction qubits due to critical current fluctuations
- Noise and decoherence in quantum two-level systems
- Variable electrostatic transformer: controllable coupling of two charge qubits
- Decoherence and dissipation during a quantum XOR gate operation
- Decoherence and gate performance of coupled solid state qubits
- Fault-Tolerant Quantum Computation via Exchange interactions
- Dispersive Manipulation of Paired Superconducting Qubits
- Decoherence of Flux Qubits Coupled to Electronic Circuits
Cited by in corpus (10)
- 1/f noise: implications for solid-state quantum information
- Optimal Control for Generating Quantum Gates in Open Dissipative Systems
- Dynamics of dissipative Landau-Zener transitions
- Multi-qubit compensation sequences
- Optimized design of universal two-qubit gates
- Decoherence of a two-qubit system with a variable bath coupling operator
- Effects of low-frequency noise cross-correlations in coupled superconducting qubits
- A Chain-Boson Model for the Decoherence and Relaxation of a Few Coupled SQUIDs in a Phonon Bath
- Relaxation of Rabi Dynamics in a Superconducting Multiple-Qubit Circuit
- Expectations of two-level telegraph noise