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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Non-Markovian qubit dynamics in a circuit-QED setup

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Cardenas, P. C. [1] ; Paternostro, M. [2] ; Semiao, F. L. [1]
Total Authors: 3
[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Sao Paulo - Brazil
[2] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim - North Ireland
Total Affiliations: 2
Document type: Journal article
Source: Physical Review A; v. 91, n. 2 FEB 26 2015.
Web of Science Citations: 9

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. (AU)

FAPESP's process: 12/12702-7 - Dynamics and non-Markovianity of qubits in superconducting circuits with coupled transmission lines
Grantee:Paulo Cesar Cardenas Montoya
Support type: Scholarships in Brazil - Doctorate