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000602517 0247_ $$2arXiv$$aarXiv:2311.14825
000602517 0247_ $$2datacite_doi$$a10.3204/PUBDB-2024-00637
000602517 037__ $$aPUBDB-2024-00637
000602517 041__ $$aEnglish
000602517 088__ $$2arXiv$$aarXiv:2311.14825
000602517 1001_ $$0P:(DE-H253)PIP1099793$$aSchuster, Stephan$$b0
000602517 245__ $$aStudying the phase diagram of the three-flavor Schwinger model in the presence of a chemical potential with measurement- and gate-based quantum computing
000602517 260__ $$c2024
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000602517 520__ $$aWe propose an ansatz quantum circuit for the variational quantum eigensolver (VQE), suitable for exploring the phase structure of the multi-flavor 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.
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000602517 650_7 $$2INSPIRE$$apotential: chemical
000602517 650_7 $$2INSPIRE$$ahardware: quantum
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000602517 650_7 $$2INSPIRE$$acritical phenomena
000602517 650_7 $$2INSPIRE$$avariational quantum eigensolver
000602517 650_7 $$2INSPIRE$$aquantum device
000602517 650_7 $$2INSPIRE$$aSchwinger model
000602517 650_7 $$2INSPIRE$$acapture
000602517 650_7 $$2INSPIRE$$aground state
000602517 650_7 $$2INSPIRE$$asuperconductivity
000602517 650_7 $$2INSPIRE$$aquantum circuit
000602517 650_7 $$2INSPIRE$$aMonte Carlo
000602517 650_7 $$2INSPIRE$$alattice field theory
000602517 650_7 $$2INSPIRE$$aHamiltonian formalism
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000602517 7001_ $$0P:(DE-H253)PIP1086314$$aKühn, Stefan$$b1$$udesy
000602517 7001_ $$aFuncke, Lena$$b2
000602517 7001_ $$0P:(DE-H253)PIP1019423$$aHartung, Tobias$$b3$$udesy
000602517 7001_ $$aPleinert, Marc-Oliver$$b4
000602517 7001_ $$avon Zanthier, Joachim$$b5
000602517 7001_ $$0P:(DE-H253)PIP1003636$$aJansen, Karl$$b6$$udesy
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000602517 9141_ $$y2024
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000602517 9201_ $$0I:(DE-H253)CQTA-20221102$$kCQTA$$lCentre f. Quantum Techno. a. Application$$x0
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