{"id":241257,"date":"2026-07-21T05:20:31","date_gmt":"2026-07-21T10:20:31","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/07\/a-scheme-to-verify-gates-of-a-quantum-computer-without-examining-devices"},"modified":"2026-07-21T05:20:31","modified_gmt":"2026-07-21T10:20:31","slug":"a-scheme-to-verify-gates-of-a-quantum-computer-without-examining-devices","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/07\/a-scheme-to-verify-gates-of-a-quantum-computer-without-examining-devices","title":{"rendered":"A scheme to verify gates of a quantum computer without examining devices"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/a-scheme-to-verify-gates-of-a-quantum-computer-without-examining-devices3.jpg\"><\/a><\/p>\n<p>Quantum computers, systems that process information using the principles of quantum mechanics, could solve some problems that cannot be tackled by the classical computers currently used worldwide. Despite their potential, verifying that these computers are working correctly and can reliably perform computations remains challenging.<\/p>\n<p>Shubhayan Sarkar, a researcher at the University of Gdansk, recently introduced a new scheme for certifying that quantum chips (unitary gates) in a quantum computer are operating correctly without relying on assumptions about their internal components. This scheme, introduced in a <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/m1tx-9mx1\" target=\"_blank\">paper published<\/a> in <i>Physical Review Letters<\/i>, uses an approach referred to as almost device-independent (DI) certification.<\/p>\n<p>\u201cConsider the computer you are using right now,\u201d Sarkar told Phys.org. \u201cIf it provides the answer to a mathematical problem, how do you know that the computation is correct? In practice, we rarely verify every calculation ourselves.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quantum computers, systems that process information using the principles of quantum mechanics, could solve some problems that cannot be tackled by the classical computers currently used worldwide. Despite their potential, verifying that these computers are working correctly and can reliably perform computations remains challenging. Shubhayan Sarkar, a researcher at the University of Gdansk, recently introduced [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,2229,1617],"tags":[],"class_list":["post-241257","post","type-post","status-publish","format-standard","hentry","category-computing","category-mathematics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/241257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=241257"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/241257\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=241257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=241257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=241257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}