Improved Ising Meson Spectroscopy Simulation on a Noisy Digital Quantum Device

• URL: http://arxiv.org/abs/2512.02516v1
• Date: Tue, 02 Dec 2025 08:16:10 GMT
• Title: Improved Ising Meson Spectroscopy Simulation on a Noisy Digital Quantum Device
• Abstract summary: We show improved spectroscopy of confined excitations using two distinct error-resilient circuit construction techniques.<n>We successfully identify key signatures of $E_8$ symmetry despite hardware noise.
• Score: 0.003004180595230273
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The transverse-field Ising model serves as a paradigm for studying confinement and excitation spectra, particularly the emergence of $E_8$ symmetry near criticality. However, experimentally resolving the Ising meson spectroscopy required to verify these symmetries is challenging on near-term quantum hardware due to the depth of circuits required for real-time evolution. Here, we demonstrate improved spectroscopy of confined excitations using two distinct error-resilient circuit construction techniques on the IBM Torino device: first-order Trotter decomposition utilizing native fractional gates, and a tensor-network-based circuit compression via Riemannian optimization. By analyzing the Fourier spectrum of error-mitigated time-series data, we successfully identify key signatures of $E_8$ symmetry despite hardware noise. These results validate the viability of both circuit compression and hardware-efficient compilation for probing complex topological phenomena on NISQ devices.

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