Spectroscopy of a Cooper-Pair box in the Autler-Townes configuration



Griffith, EJ, Ralph, JF ORCID: 0000-0002-4946-9948, Greentree, Andrew D and Clark, TD
Spectroscopy of a Cooper-Pair box in the Autler-Townes configuration. Phys. Rev. B, 74. 094510 - ?.

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Abstract

A theoretical spectroscopic analysis of a microwave driven superconducting charge qubit (Cooper-pair box coupled) to an RLC oscillator model is performed. By treating the oscillator as a probe through the backreaction effect of the qubit on the oscillator circuit, we extract frequency splitting features analogous to the Autler-Townes effect from quantum optics, thereby extending the analogies between superconducting and quantum optical phenomenology. These features are found in a frequency band that avoids the need for high frequency measurement systems and therefore may be of use in qubit characterization and coupling schemes. In addition we find this frequency band can be adjusted to suit an experimental frequency regime by changing the oscillator frequency.

Item Type: Article
Additional Information: 13 pages, 7 figures. v2: Revised version after referee comments. Accepted for publication by Physical Review B
Uncontrolled Keywords: cond-mat.supr-con, cond-mat.supr-con, cond-mat.mes-hall, quant-ph
Depositing User: Symplectic Admin
Date Deposited: 19 Oct 2016 08:20
Last Modified: 16 Sep 2020 08:11
DOI: 10.1103/PhysRevB.74.094510
Related URLs:
URI: http://livrepository.liverpool.ac.uk/id/eprint/3000955