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https://doi.org/10.1103/physre...
Article . 2024 . Peer-reviewed
License: CC BY
Data sources: Crossref
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https://dx.doi.org/10.48550/ar...
Article . 2023
License: CC BY
Data sources: Datacite
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Studying the phase diagram of the three-flavor Schwinger model in the presence of a chemical potential with measurement- and gate-based quantum computing

Authors: Stephan Schuster; Stefan Kühn; Lena Funcke; Tobias Hartung; Marc-Oliver Pleinert; Joachim von Zanthier; Karl Jansen;

Studying the phase diagram of the three-flavor Schwinger model in the presence of a chemical potential with measurement- and gate-based quantum computing

Abstract

We propose an ansatz quantum circuit for the variational quantum eigensolver (VQE), suitable for exploring the phase structure of the multiflavor Schwinger model in the presence of a chemical potential. Our ansatz is capable of incorporating relevant model symmetries via constrains on the parameters, and can be implemented on circuit-based as well as measurement-based quantum devices. We show via classical simulation of the VQE that our ansatz is able to capture the phase structure of the model, and can approximate the ground state to a high level of accuracy. Moreover, we perform proof-of-principle simulations on superconducting, gate-based quantum hardware. Our results show that our approach is suitable for current gate-based quantum devices, and can be readily implemented on measurement-based quantum devices once available. Published by the American Physical Society 2024

Country
Germany
Keywords

FOS: Physical sciences, quantum device, spin, computer: quantum, 530, renormalization, High Energy Physics - Lattice, ground state, Pauli, info:eu-repo/classification/ddc/530, capture, Monte Carlo, Quantum Physics, Hamiltonian formalism, variational quantum eigensolver, superconductivity, High Energy Physics - Lattice (hep-lat), Schwinger model, lattice field theory, Hilbert space, critical phenomena, boundary condition, Gauss law, potential: chemical, hardware: quantum, quantum circuit, Quantum Physics (quant-ph)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Top 10%
Average
Average
Green
hybrid