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Oriel Kiss

Ph.D. Researcher in quantum computing


Curriculum vitae



Quantum Technology Initiative

CERN






Quantum Technology Initiative

CERN



Quantum error mitigation for Fourier moment computation


Unpublished


Oriel Kiss, Michele Grossi, Alessandro Roggero
arXiv, 2401.13048, 2024 Jan

arXiv
Cite

Cite

APA   Click to copy
Kiss, O., Grossi, M., & Roggero, A. (2024, January). Quantum error mitigation for Fourier moment computation. arXiv.


Chicago/Turabian   Click to copy
Kiss, Oriel, Michele Grossi, and Alessandro Roggero. “Quantum Error Mitigation for Fourier Moment Computation.” ArXiv, January 2024.


MLA   Click to copy
Kiss, Oriel, et al. “Quantum Error Mitigation for Fourier Moment Computation.” ArXiv, vol. 2401.13048, Jan. 2024.


BibTeX   Click to copy

@unpublished{oriel2024a,
  title = {Quantum error mitigation for Fourier moment computation},
  year = {2024},
  month = jan,
  journal = {arXiv},
  volume = {2401.13048},
  author = {Kiss, Oriel and Grossi, Michele and Roggero, Alessandro},
  month_numeric = {1}
}

Hamiltonian moments in Fourier space - expectation values of the unitary evolution operator under a Hamiltonian at different times - provide a convenient framework to understand quantum systems. They offer insights into the energy distribution, higher-order dynamics, response functions, correlation information and physical properties. This paper focuses on the computation of Fourier moments within the context of a nuclear effective field theory on superconducting quantum hardware. The study integrates echo verification and noise renormalization into Hadamard tests using control reversal gates. These techniques, combined with purification and error suppression methods, effectively address quantum hardware decoherence. The analysis, conducted using noise models, reveals a significant reduction in noise strength by two orders of magnitude. Moreover, quantum circuits involving up to 266 CNOT gates over five qubits demonstrate high accuracy under these methodologies when run on IBM superconducting quantum devices. 

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