Charge noise effects in Majorana-based qubits

Oral-In-person

Abstract

We discuss how charge noise is affecting the lifetime of Majorana-based qubits. While the effect of noise on topological qubit is generally exponentially suppressed, it is still playing an important role in modeling the lifetime of near-term devices. We provide an overview of different lifetime and dephasing mechanisms in topological qubits and specifically discuss the recently measured lifetimes in Majorana Tetron devices [1]. 

[1] Microsoft Quantum, Distinct Lifetimes for X and Z Loop Measurements in a Majorana Tetron Device, Arxiv 2507.08795 (2025).

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Publication: Microsoft Quantum, Distinct Lifetimes for X and Z Loop Measurements in a Majorana Tetron Device, Arxiv 2507.08795 (2025).

Presenters

  • Torsten Karzig

    • Microsoft Quantum

Authors

  • Torsten Karzig

    • Microsoft Quantum

  • Samuel Boutin

    • Microsoft Quantum

  • Tareq El Dandachi

    • Microsoft

  • Christina Knapp

    • Microsoft Corporation

  • Ryan Mishmash

  • Bela Bauer

    • Microsoft Corporation

  • Roman Lutchyn

    • Microsoft Corporation

  • Chetan Nayak

    • Microsoft Corporation