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Implementing a Logical Qubit on a Trapped Ion Quantum Information Processor

ORAL

Abstract

Under the IARPA Logical Qubit (LogiQ) program, we aim to demonstrate a logical qubit using the Bacon-Shor [[9,1,3]] subsystem code. Towards this goal, we built a universal ion-trap quantum processor capable of individual qubit addressing, sympathetic cooling, and ancilla readout. The Bacon-Shor code consists of 9 data qubits, encoding 1 logical qubit, with stabilizer circuits mapped to 4 ancilla qubits capable of correcting any single qubit error. In this talk, we report on the experimental progress made towards implementation of quantum error correction, including the encoding of the logical qubit and stabilizer readout. Additionally, we will lay out the near-term path for achieving multiple rounds of error correction and the prospects for surpassing the quantum error threshold.

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Presenters

  • Laird Egan

    University of Maryland, College Park, Joint Quantum Institute, University of Maryland, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

Authors

  • Laird Egan

    University of Maryland, College Park, Joint Quantum Institute, University of Maryland, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Marko Cetina

    University of Maryland, College Park, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Michael L Goldman

    University of Maryland, College Park, Joint Quantum Institute, University of Maryland, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Andrew Risinger

    University of Maryland, College Park, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Crystal Noel

    University of Maryland, College Park, Joint Quantum Institute, University of Maryland, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Daiwei Zhu

    University of Maryland, College Park, Physics, University of Maryland, University of Maryland, Joint Quantum Institute, University of Maryland, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Debopriyo Biswas

    University of Maryland, College Park, Department of Physics & Joint Quantum Institute, University of Maryland, College Park

  • Christopher Roy Monroe

    University of Maryland, College Park, University of Maryland Department of Physics and NIST, Physics, University of Maryland, University of Maryland, Joint Quantum Institute, University of Maryland, Department of Physics & Joint Quantum Institute, University of Maryland, College Park