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Physical Review A

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Lower bounds to variational problems with guarantees

Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany and Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany

Imaginary time spectral transforms for excited-state preparation

D. A. Millar, L. W. Anderson, E. Altamura, O. Wallis, M. E. Sahin, J. Crain, and S. J. Thomson

Phys. Rev. Research 8 L022042 (2026)

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ISSN 2469-9934 (online), 2469-9926 (print).

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