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Proposal for Coherent Coupling of Majorana Zero Modes and Superconducting Qubits Using the 4π Josephson Effect

Pekker, David and Hou, Chang-Yu and Manucharyan, Vladimir E. and Demler, Eugene (2013) Proposal for Coherent Coupling of Majorana Zero Modes and Superconducting Qubits Using the 4π Josephson Effect. Physical Review Letters, 111 (10). Art. No. 107007. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:20130128-092139092

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Abstract

We propose to use an ancilla fluxonium qubit to interact with a Majorana qubit hosted by a topological 1D wire. The coupling is obtained using the Majorana qubit controlled 4π Josephson effect to flux bias the fluxonium qubit. We demonstrate how this coupling can be used to sensitively identify topological superconductivity, to measure the state of the Majorana qubit, to construct 2-qubit operations, and to implement quantum memories with topological protection.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevLett.111.107007DOIArticle
https://arxiv.org/abs/1301.3161arXivDiscussion Paper
Alternate Title:Proposal for coherent coupling of Majorana and fluxonium qubits
Additional Information:© 2013 American Physical Society. Received 28 January 2013; published 5 September 2013. It is our pleasure to thank J. Sau, D. Abanin, C. Marcus, and A. Akhmerov for useful discussions. We would like to thank the KITP for its hospitality. D. P. thanks the Lee A. DuBridge fellowship and the IQIM, C.-Y.H. thanks the DARPA-QuEST program, and E. D. thanks the Harvard-MIT CUA, NSF Grant No. DMR-07-05472, ARO-MURI on Atomtronics, and ARO MURI Quism program.
Group:Institute for Quantum Information and Matter
Funders:
Funding AgencyGrant Number
Lee A. DuBridge FellowshipUNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Harvard-MIT Center for Ultracold AtomsUNSPECIFIED
NSFDMR-07-05472
Army Research Office (ARO)UNSPECIFIED
Issue or Number:10
Classification Code:PACS: 74.81.Fa, 73.63.Nm, 74.20.Mn, 74.50.+r
Record Number:CaltechAUTHORS:20130128-092139092
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130128-092139092
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36611
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:28 Jan 2013 17:39
Last Modified:04 Jun 2020 10:14

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