Symmetry breaking in geometric quantum machine learning in the presence of noise

• URL: http://arxiv.org/abs/2401.10293v1
• Date: Wed, 17 Jan 2024 19:00:00 GMT
• Title: Symmetry breaking in geometric quantum machine learning in the presence of noise
• Authors: Cenk T\"uys\"uz, Su Yeon Chang, Maria Demidik, Karl Jansen, Sofia Vallecorsa, Michele Grossi
• Abstract summary: This work studies the behavior of EQNN models in the presence of noise. We claim that the symmetry breaking grows linearly in the number of layers and noise strength. We provide strategies to enhance the symmetry protection of EQNN models in the presence of noise.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Geometric quantum machine learning based on equivariant quantum neural networks (EQNN) recently appeared as a promising direction in quantum machine learning. Despite the encouraging progress, the studies are still limited to theory, and the role of hardware noise in EQNN training has never been explored. This work studies the behavior of EQNN models in the presence of noise. We show that certain EQNN models can preserve equivariance under Pauli channels, while this is not possible under the amplitude damping channel. We claim that the symmetry breaking grows linearly in the number of layers and noise strength. We support our claims with numerical data from simulations as well as hardware up to 64 qubits. Furthermore, we provide strategies to enhance the symmetry protection of EQNN models in the presence of noise.

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