Quantum algorithms on a four-qubit photonic controlled-shift gate

Joseph Ho*, Raj B. Patel, Timothy C. Ralph, Geoff J. Pryde

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We implement a four-qubit controlled-shift gate leveraging photon entanglement in extended Hilbert spaces and observe Psuccess = 0.25. This enables our demonstration of a DQC1 protocol and the quantum phase estimation algorithm featuring a multi-qubit unitary.

Original languageEnglish
Title of host publicationQuantum Information and Measurement 2019
PublisherOSA Publishing
ISBN (Print)9781943580569
Publication statusPublished - 2019
EventQuantum Information and Measurement 2019 - Rome, Italy
Duration: 4 Apr 20196 Apr 2019


ConferenceQuantum Information and Measurement 2019
Abbreviated titleQIM 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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