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Nonlinear oscillators and high fidelity qubit state measurement in circuit quantum electrodynamics

Ginossar, E, Bishop, LS and Girvin, SM (2012) Nonlinear oscillators and high fidelity qubit state measurement in circuit quantum electrodynamics In: Fluctuating Nonlinear Oscillators. From nanomechanics to quantum superconducting circuits. Oxford University Press. ISBN 978 019 9691388

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Abstract

In this book chapter we analyze the high excitation nonlinear response of the Jaynes-Cummings model in quantum optics when the qubit and cavity are strongly coupled. We focus on the parameter ranges appropriate for transmon qubits in the circuit quantum electrodynamics architecture, where the system behaves essentially as a nonlinear quantum oscillator and we analyze the quantum and semi-classical dynamics. One of the central motivations is that under strong excitation tones, the nonlinear response can lead to qubit quantum state discrimination and we present initial results for the cases when the qubit and cavity are on resonance or far off-resonance (dispersive).

Item Type: Book Section
Authors :
NameEmailORCID
Ginossar, EUNSPECIFIEDUNSPECIFIED
Bishop, LSUNSPECIFIEDUNSPECIFIED
Girvin, SMUNSPECIFIEDUNSPECIFIED
Date : 19 July 2012
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 14:10
Last Modified : 31 Oct 2017 14:46
URI: http://epubs.surrey.ac.uk/id/eprint/729044

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