Charge noise effects in Majorana-based qubits

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).