Tunable interaction of superconducting flux qubits in circuit QED
arXiv:1511.07560 · doi:10.1007/s11128-015-1185-8
Abstract
We propose to implement tunable interaction of superconducting flux qubits with cavity-assisted interaction and strong driving. The qubits have a three-level Lambda configuration, and the decay of the excited state will be greatly suppressed due to the effective large detuning. The implemented interaction is insensitive to the cavity field state and can be controlled by modulating the phase difference of the driving fields of the qubits. In particular, our scheme is based on the typical circuit QED setup and thus will provide a simple method towards the tunable interaction of superconducting qubits. Finally, we consider the generation of two and four qubits entangled states with the constructed interaction under the influence of typical decoherence effects.
Online first published at Quantum Information Processing
References in corpus (15)
- Coupling Superconducting Qubits via a Cavity Bus
- Superconducting Circuits and Quantum Information
- Photon-mediated interactions between distant artificial atoms
- Quantum Many-Body Phenomena in Coupled Cavity Arrays
- Two-photon probe of the Jaynes-Cummings model and symmetry breaking in circuit QED
- Tunable coupling in circuit quantum electrodynamics with a superconducting V-system
- Quantum information processing and multiatom entanglement engineering with a thermal cavity
- Scalable superconducting qubit circuits using dressed states
- Interqubit coupling mediated by a high-excitation-energy quantum object
- Simple unconventional geometric scenario of one-way quantum computation with superconducting qubits inside a cavity
- Switchable resonant coupling of flux qubits
- Generalized switchable coupling for superconducting qubits using double resonance
- Tunable-Cavity QED with Phase Qubits
- Robust interface between flying and topological qubits
- All-optical controlled phase gate in quantum dot molecules