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

David Pekker, Chang-Yu Hou, Vladimir E. Manucharyan, and Eugene Demler
Phys. Rev. Lett. 111, 107007 – Published 5 September 2013
PDFHTMLExport Citation

Abstract

We propose to use an ancilla fluxonium qubit to interact with a Majorana qubit hosted by a topological one-dimensional 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.

  • Figure
  • Figure
  • Figure
  • Received 28 January 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.107007

© 2013 American Physical Society

Authors & Affiliations

David Pekker1, Chang-Yu Hou1,2, Vladimir E. Manucharyan3, and Eugene Demler4

  • 1Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
  • 2Department of Physics and Astronomy, University of California at Riverside, Riverside, California 92521, USA
  • 3Society of Fellows, Harvard University, Cambridge, Massachusetts 02138, USA
  • 4Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 111, Iss. 10 — 6 September 2013

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×