Nadir Samos Sáenz de Buruaga: About barren plateaus and quantum complexity | PYSQT
Автор: PYSQT
Загружено: 2022-12-21
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Seminar by Nadir Samos Sáenz de Buruaga, organized by the PYSQT (PhDs and Young Scientists Quantum Technologies) network on the 20-12-2022.
About barren plateaus and quantum complexity -
I will review the barren plateaus (BPs) issue in the field of variational quantum algorithms
(VQA) with a particular focus on those generated by an excess of randomness, providing
an accessible introduction to the topic. I will also show that restricting the entanglement
of the states seems not to be a good strategy for avoiding BPs, posing the question if
there is another more decisive quantity that can help in this pursuit. I will then briefly
introduce the quantum complexity and its relation, at least at a formal level, with the
concept of expressibility of an ansatz.
https://doi.org/10.1103/PhysRevB.104....
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