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Quantum measurement of a coupled nanomechanical resonator–Cooper-pair box system

Irish, E. K. and Schwab, K. (2003) Quantum measurement of a coupled nanomechanical resonator–Cooper-pair box system. Physical Review B, 68 (15). Art. No. 155311. ISSN 0163-1829. doi:10.1103/PhysRevB.68.155311.

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We show two effects as a result of considering the second-order correction to the spectrum of a nanomechanical resonator electrostatically coupled to a Cooper-pair box. The spectrum of the Cooper-pair box is modified in a way which depends on the Fock state of the resonator. Similarly, the frequency of the resonator becomes dependent upon the state of the Cooper-pair box. We consider whether these frequency shifts could be utilized to prepare the nanomechanical resonator in a Fock state, to perform a quantum non-demolition measurement of the resonator Fock state, and to distinguish the phase states of the Cooper-pair box.

Item Type:Article
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URLURL TypeDescription Paper
Schwab, K.0000-0001-8216-4815
Additional Information:© 2003 The American Physical Society. Received 14 January 2003; revised manuscript received 18 June 2003; published 15 October 2003. We would like to acknowledge helpful conversations with Miles Blencowe, Andrew Armour, Nicholas Bigelow, Michael Wulf, Ivar Martin, Carlos Sanchez, Xuedong Hu, Sankar Das Sarma, Andrew Skinner, and Arthur Vandelay. This work was supported by the National Security Agency. E.K.I. acknowledges support from the National Physical Sciences Consortium.
Funding AgencyGrant Number
National Security AgencyUNSPECIFIED
National Physical Science Consortium (NPSC)UNSPECIFIED
Issue or Number:15
Classification Code:PACS: 85.85.+j, 85.25.Cp, 85.35.Gv, 03.65.Ta
Record Number:CaltechAUTHORS:20160523-090223960
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Official Citation:Quantum measurement of a coupled nanomechanical resonator–Cooper-pair box system E. K. Irish and K. Schwab Phys. Rev. B 68, 155311
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67250
Deposited By: Tony Diaz
Deposited On:23 May 2016 19:12
Last Modified:11 Nov 2021 00:29

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