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Proposal for coherent coupling of Majorana and fluxonium qubits

Pekker, David and Hou, Chang-Yu and Manucharyan, Vladimir and Demler, Eugene (2013) Proposal for coherent coupling of Majorana and fluxonium qubits. . (Submitted)

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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:Report or Paper (Discussion Paper)
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Additional Information: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. DP thanks the Lee A. Du Bridge fellowship and the IQIM, CYH thanks DARPA-QuEST program, EAD thanks the Harvard-MIT CUA, NSF Grant No. DMR-07-05472, ARO-MURI on Atomtronics, and ARO MURI Quism program.
Funding AgencyGrant Number
Lee A. DuBridge FellowshipUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA) QuEST ProgramUNSPECIFIED
Army Research Office (ARO) Multidisciplinary University Research Initiative (MURI) on AtomtronicsUNSPECIFIED
Army Research Office (ARO) Multidisciplinary University Research Initiative (MURI) Quism programUNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Classification Code:PACS: 74.20.Mn, 73.63.Nm, 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:03 Oct 2019 04:39

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