PIRSA:18100070

Fault-tolerant magic state preparation with flag qubits

APA

Chamberland, C. (2018). Fault-tolerant magic state preparation with flag qubits. Perimeter Institute. https://pirsa.org/18100070

MLA

Chamberland, Christopher. Fault-tolerant magic state preparation with flag qubits. Perimeter Institute, Oct. 11, 2018, https://pirsa.org/18100070

BibTex

          @misc{ pirsa_PIRSA:18100070,
            doi = {10.48660/18100070},
            url = {https://pirsa.org/18100070},
            author = {Chamberland, Christopher},
            keywords = {Quantum Information},
            language = {en},
            title = {Fault-tolerant magic state preparation with flag qubits},
            publisher = {Perimeter Institute},
            year = {2018},
            month = {oct},
            note = {PIRSA:18100070 see, \url{https://pirsa.org}}
          }
          

Abstract

Despite considerable effort, magic state distillation remains one of the leading candidates to achieve universal fault-tolerant quantum computation. However, when analyzing magic state distillation schemes, it is often assumed that gates belonging to the Clifford group can be implemented perfectly. In many current quantum technologies, two-qubit Cliffords gates are amongst the noisiest components of quantum computers. In this talk I will present a new scheme for preparing magic states with very low overhead that uses flag qubits. I will then compare our scheme to leading magic state distillation methods and show that the overhead can be reduced by orders of magnitude.