Modeling Charge Noise in Superconducting Qubits Using Memory Multi-Fractional Brownian Motion

Mahboob Ul Haq

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arXiv · 2507.20097

Modeling Charge Noise in Superconducting Qubits Using Memory Multi-Fractional Brownian Motion

Mahboob Ul Haq

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Abstract

We introduce a novel stochastic model for charge noise in superconducting charge qubits based on memory multi-fractional Brownian motion (mmfBm), capable of capturing non-stationary and long-memory effects. This framework reproduces key experimental features of decoherence and offers new insights into environmental interactions with superconducting quantum devices.

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Mahboob Ul Haq. 2025-07-27. Modeling Charge Noise in Superconducting Qubits Using Memory Multi-Fractional Brownian Motion. https://arxiv.org/abs/2507.20097

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