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@ARTICLE{Chai:615335,
      author       = {Chai, Yahui and Jansen, Karl and Kühn, Stefan and
                      Schwägerl, Tim and Stollenwerk, Tobias},
      title        = {{S}tructure-inspired {A}nsatz and {W}arm {S}tart of
                      {V}ariational {Q}uantum {A}lgorithms for {Q}uadratic
                      {U}nconstrained {B}inary {O}ptimization {P}roblems},
      reportid     = {PUBDB-2024-06093, arXiv:2407.02569},
      year         = {2024},
      abstract     = {This paper introduces a structure-inspired ansatz for
                      addressing quadratic unconstrained binary optimization
                      problems with the Variational Quantum Eigensolver. We
                      propose a novel warm start technique that is based on
                      imaginary time evolution, and allows for determining a set
                      of initial parameters prioritizing lower energy states in a
                      resource-efficient way. Using classical simulations, we
                      demonstrate that this warm start method significantly
                      improves the success rate and reduces the number of
                      iterations required for the convergence of Variational
                      Quantum Eigensolver. The numerical results also indicate
                      that the warm start approach effectively mitigates
                      statistical errors arising from a finite number of
                      measurements, and to a certain extent alleviates the effect
                      of barren plateaus.},
      cin          = {CQTA},
      cid          = {I:(DE-H253)CQTA-20221102},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / QUEST -
                      QUantum computing for Excellence in Science and Technology
                      (101087126) / DFG project G:(GEPRIS)429529648 - TRR 306:
                      Quantenkooperativität von Licht und Materie – QuCoLiMa
                      (429529648)},
      pid          = {G:(DE-HGF)POF4-611 / G:(EU-Grant)101087126 /
                      G:(GEPRIS)429529648},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2407.02569},
      howpublished = {arXiv:2407.02569},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2407.02569;\%\%$},
      doi          = {10.3204/PUBDB-2024-06093},
      url          = {https://bib-pubdb1.desy.de/record/615335},
}