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Paper 1

Ice cream, chocolate, random identification codes, quantum error correction -- and a truly warm heart

Christian Deppe

Year
2025
Journal
arXiv preprint
DOI
arXiv:2512.11889
arXiv
2512.11889

This text is written in remembrance of Vladimir (Volodia) Sidorenko, honoring his scientific work, his kindness, and the warm and humorous spirit he brought into the community.

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Paper 2

A deceptive step towards quantum speedup detection

Salvatore MandrĂ , Helmut G. Katzgraber

Year
2017
Journal
arXiv preprint
DOI
arXiv:1711.01368
arXiv
1711.01368

There have been multiple attempts to design synthetic benchmark problems with the goal of detecting quantum speedup in current quantum annealing machines. To date, classical heuristics have consistently outperformed quantum-annealing based approaches. Here we introduce a class of problems based on frustrated cluster loops - deceptive cluster loops - for which all currently known state-of-the-art classical heuristics are outperformed by the D-Wave 2000Q quantum annealing machine. While there is a sizable constant speedup over all known classical heuristics, a noticeable improvement in the scaling remains elusive. These results represent the first steps towards a detection of potential quantum speedup, albeit without a scaling improvement and for synthetic benchmark problems.

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