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Published March 28, 2011 | Published
Journal Article Open

Interface between Topological and Superconducting Qubits

Abstract

We propose and analyze an interface between a topological qubit and a superconducting flux qubit. In our scheme, the interaction between Majorana fermions in a topological insulator is coherently controlled by a superconducting phase that depends on the quantum state of the flux qubit. A controlled-phase gate, achieved by pulsing this interaction on and off, can transfer quantum information between the topological qubit and the superconducting qubit.

Additional Information

© 2011 American Physical Society. Received 29 October 2010; published 28 March 2011. We are especially indebted to Mikhail Lukin for inspiring discussions. We also thank Anton Akhmerov, Jason Alicea, Erez Berg, David DiVincenzo, Garry Goldstein, Netanel Lindner, and Gil Refael for helpful comments. This work was supported by the Sherman Fairchild Foundation, by NSF Grants No. DMR-0906175 and No. PHY-0803371, by DOE Grant No. DE-FG03-92- ER40701, and by NSA/ARO Grant No. W911NF-09- 1-0442.

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Published - Jiang2011p13448Phys_Rev_Lett.pdf

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