Efficient scheme for hybrid teleportation via entangled coherent states in circuit quantum electrodynamics

Jaewoo Joo*, Eran Ginossar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We propose a deterministic scheme for teleporting an unknown qubit state through continuous-variable entangled states in superconducting circuits. The qubit is a superconducting two-level system and the bipartite quantum channel is a microwave photonic entangled coherent state between two cavities. A Bell-type measurement performed on the hybrid state of solid and photonic states transfers a discrete-variable unknown electronic state to a continuous-variable photonic cat state in a cavity mode. In order to facilitate the implementation of such complex protocols we propose a design for reducing the self-Kerr nonlinearity in the cavity. The teleporation scheme enables quantum information processing operations with circuit-QED based on entangled coherent states. These include state verification and single-qubit operations with entangled coherent states. These are shown to be experimentally feasible with the state of the art superconducting circuits.

Original languageEnglish
Article number26338
Number of pages13
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 1 Jun 2016

Keywords

  • RCUK
  • EPSRC
  • EP/L026082/1

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