{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:21:08Z","timestamp":1760149268239,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2023,7,21]],"date-time":"2023-07-21T00:00:00Z","timestamp":1689897600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"LSU Economic Development Assistantship and the US National Science Foundation","award":["1907615","DE-SC0021069"],"award-info":[{"award-number":["1907615","DE-SC0021069"]}]},{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering","doi-asserted-by":"publisher","award":["1907615","DE-SC0021069"],"award-info":[{"award-number":["1907615","DE-SC0021069"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Guesswork is an information\u2013theoretic quantity which can be seen as an alternate security criterion to entropy. Recent work has established the theoretical framework for guesswork in the presence of quantum side information, which we extend both theoretically and experimentally. We consider guesswork when the side information consists of the BB84 states and their higher-dimensional generalizations. With this side information, we compute the guesswork for two different scenarios for each dimension. We then performed a proof-of-principle experiment using Laguerre\u2013Gauss modes to experimentally compute the guesswork for higher-dimensional generalizations of the BB84 states. We find that our experimental results agree closely with our theoretical predictions. This work shows that guesswork can be a viable security criterion in cryptographic tasks and is experimentally accessible in a number of optical setups.<\/jats:p>","DOI":"10.3390\/s23146570","type":"journal-article","created":{"date-parts":[[2023,7,24]],"date-time":"2023-07-24T03:03:25Z","timestamp":1690167805000},"page":"6570","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Experimental Guesswork with Quantum Side Information Using Twisted Light"],"prefix":"10.3390","volume":"23","author":[{"given":"Vishal","family":"Katariya","sequence":"first","affiliation":[{"name":"Hearne Institute for Theoretical Physics, Department of Physics & Astronomy, and Center for Computation & Technology, Louisiana State University, Baton Rouge, LA 70803, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Narayan","family":"Bhusal","sequence":"additional","affiliation":[{"name":"Quantum Photonics Laboratory, Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1383-0551","authenticated-orcid":false,"given":"Chenglong","family":"You","sequence":"additional","affiliation":[{"name":"Quantum Photonics Laboratory, Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,21]]},"reference":[{"key":"ref_1","unstructured":"Massey, J. 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