{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:20:55Z","timestamp":1760145655044,"version":"build-2065373602"},"reference-count":73,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,8,20]],"date-time":"2024-08-20T00:00:00Z","timestamp":1724112000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"NextGenerationEu Curiosity Driven Project","award":["2022PH852L"],"award-info":[{"award-number":["2022PH852L"]}]},{"name":"Non-reciprocal supercurrent and topological transitions in hybrid Nb-InSb nanoflags\u201d project","award":["2022PH852L"],"award-info":[{"award-number":["2022PH852L"]}]},{"name":"CERN","award":["2022PH852L"],"award-info":[{"award-number":["2022PH852L"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Spin 1\/2 quantum spin chains represent the prototypical model for coupled two-level systems. Consequently, they offer a fertile playground for both fundamental and technological applications ranging from the theory of thermalization to quantum computation. Recently, it has been shown that interesting phenomena are associated to the boundary conditions imposed on the quantum spin chains via the so-called topological frustration. In this work, we analyze the effects of such frustration on a few-spin system, with a particular focus on the strong even\u2013odd effects induced in the ground-state energy. We then implement a topologically frustrated quantum spin chain on a quantum computer to show that our predictions are visible on current quantum hardware platforms.<\/jats:p>","DOI":"10.3390\/sym16081078","type":"journal-article","created":{"date-parts":[[2024,8,20]],"date-time":"2024-08-20T06:07:35Z","timestamp":1724134055000},"page":"1078","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Few-Body Precursors of Topological Frustration"],"prefix":"10.3390","volume":"16","author":[{"given":"Federico Raffaele","family":"De Filippi","sequence":"first","affiliation":[{"name":"Department of Physics, University of Trieste, 34127 Trieste, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio Francesco","family":"Mello","sequence":"additional","affiliation":[{"name":"International School for Advanced Studies (SISSA), 34136 Trieste, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Sacco Shaikh","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Genova, via Dodecaneso 33, 16146 Genova, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maura","family":"Sassetti","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Genova, via Dodecaneso 33, 16146 Genova, Italy"},{"name":"CNR SPIN, via Dodecaneso 33, 16146 Genova, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Niccol\u00f2","family":"Traverso Ziani","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Genova, via Dodecaneso 33, 16146 Genova, Italy"},{"name":"CNR SPIN, via Dodecaneso 33, 16146 Genova, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1718-1314","authenticated-orcid":false,"given":"Michele","family":"Grossi","sequence":"additional","affiliation":[{"name":"European Organization for Nuclear Research (CERN), 1211 Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"064007","DOI":"10.1088\/1742-5468\/2016\/06\/064007","article-title":"Generalized Gibbs ensemble in integrable lattice models","volume":"2016","author":"Vidmar","year":"2016","journal-title":"J. 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