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We find that the hybrid setup cascading two reservoirs not only inherits the strengths of both of its constituents but is even more than just the sum of its parts, outperforming comparable non-hybrid alternatives. The quantum layer is within reach of state-of-the-art multimode quantum optical platforms while the classical layer can be implemented in silico.<\/jats:p>","DOI":"10.1088\/2632-2153\/ad5f12","type":"journal-article","created":{"date-parts":[[2024,7,3]],"date-time":"2024-07-03T23:22:42Z","timestamp":1720048962000},"page":"035022","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":14,"title":["Retrieving past quantum features with deep hybrid classical-quantum reservoir computing"],"prefix":"10.1088","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5052-9813","authenticated-orcid":true,"given":"Johannes","family":"Nokkala","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gian Luca","family":"Giorgi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9896-3563","authenticated-orcid":true,"given":"Roberta","family":"Zambrini","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2024,7,19]]},"reference":[{"key":"mlstad5f12bib1","doi-asserted-by":"publisher","first-page":"1527","DOI":"10.1162\/neco.2006.18.7.1527","volume":"18","author":"Hinton","year":"2006","journal-title":"Neural Comput."},{"key":"mlstad5f12bib2","author":"Goodfellow","year":"2016"},{"key":"mlstad5f12bib3","author":"Farhi","year":"2014"},{"key":"mlstad5f12bib4","doi-asserted-by":"publisher","first-page":"242","DOI":"10.1038\/nature23879","volume":"549","author":"Kandala","year":"2017","journal-title":"Nature"},{"key":"mlstad5f12bib5","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevA.98.032309","volume":"98","author":"Mitarai","year":"2018","journal-title":"Phys. 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