Non-Markovian qubit dynamics in a circuit-QED setup

P. C. Cardenas*, M. Paternostro, F. L. Semiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
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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 another 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 the first experimental assessment of non-Markovianity in a multielement solid-state device.

Original languageEnglish
Article number022122
Number of pages8
JournalPhysical Review A (Atomic, Molecular, and Optical Physics)
Volume91
Issue number2
DOIs
Publication statusPublished - 26 Feb 2015

Keywords

  • QUANTUM-STATE
  • MODEL

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