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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. doi:10.1103/PhysRevLett.111.107007.

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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
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URLURL TypeDescription 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
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
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
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36611
Deposited By: Ruth Sustaita
Deposited On:28 Jan 2013 17:39
Last Modified:09 Nov 2021 23:23

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