Non-Markovian qubit dynamics in a circuit-QED setup
arXiv:1406.4899 · doi:10.1103/PhysRevA.91.022122
Abstract
We consider a circuit-QED setup that allows the induction and control of non-Markovian dynamics of a qubit. Non-Markovianity is enforced over the qubit by means of its direct coupling to a bosonic mode which is controllably coupled to other qubit-mode system. We show that this configuration can be achieved in a circuit-QED setup consisting of two initially independent superconducting circuits, each formed by one charge qubit and one transmission-line resonator, which are put in interaction by coupling the resonators to a current-biased Josephson junction. We solve this problem exactly and then proceed with a thorough investigation of the emergent non-Markovianity in the dynamics of the qubits. Our study might serve the context for a first experimental assessment of non-Markovianity in a multi-element solid-state device.
8 pages, 7 figures, slightly changed title
References in corpus (12)
- Charge insensitive qubit design derived from the Cooper pair box
- Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
- Quantum information processing with circuit quantum electrodynamics
- Assessing non-Markovian dynamics
- Approaching Unit Visibility for Control of a Superconducting Qubit with Dispersive Readout
- Quantum Many-Body Phenomena in Coupled Cavity Arrays
- Entanglement dynamics of two independent qubits in environments with and without memory
- Correlation-dependent coherent to incoherent transitions in resonant energy transfer dynamics
- Optimal state pairs for non-Markovian quantum dynamics
- Dynamics in a coupled-cavity array
- Improved Superconducting Qubit Readout by Qubit-Induced Nonlinearities
- Dynamical role of system-environment correlations in non-Markovian dynamics