{"id":1361,"date":"2026-10-25T14:00:00","date_gmt":"2026-10-25T05:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1361"},"modified":"2026-10-23T05:26:21","modified_gmt":"2026-10-22T20:26:21","slug":"qs-naimark-povm-expanded-space-20261023","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1361","title":{"rendered":"\u30ca\u30a4\u30de\u30eb\u30af\u306e\u5b9a\u7406\u3001\u4e09\u3064\u306e\u6e2c\u5b9a\u7d50\u679c\u3092\u5e83\u3044\u7a7a\u9593\u3067\u518d\u73fe\u3059\u308b"},"content":{"rendered":"<p>\u4e00\u91cf\u5b50\u30d3\u30c3\u30c8\u306e\u6e2c\u5b9a\u3068\u3044\u3048\u3070\u30010\u304b1\u306e\u4e8c\u3064\u306e\u7d50\u679c\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305d\u308c\u3067\u3082\u3001\u91cf\u5b50\u72b6\u614b\u304b\u3089\u4e09\u3064\u306e\u30e9\u30d9\u30eb\u306e\u3044\u305a\u308c\u304b\u3092\u8fd4\u3059\u6e2c\u5b9a\u306f\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u4e00\u822c\u5316\u6e2c\u5b9a\u3092\u8868\u3059POVM\u3068\u3001\u3088\u308a\u5927\u304d\u306a\u7a7a\u9593\u3067\u884c\u3046\u5c04\u5f71\u6e2c\u5b9a\u306e\u95a2\u4fc2\u3092\u898b\u308b\u3068\u3001\u7d50\u679c\u306e\u6570\u304c\u5897\u3048\u308b\u4ed5\u7d44\u307f\u3092\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<section 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Watrous, <a href=\"https:\/\/cs.uwaterloo.ca\/~watrous\/TQI\/TQI.pdf\">The Theory of Quantum Information\u30012018\u5e74\u306e\u8457\u8005\u516c\u958b\u30fb\u520a\u884c\u524d\u7a3f<\/a>\u3002\u7b2c2\u7ae0\u00a72.3\u3001\u6e2c\u5b9a\u306e\u5b9a\u7fa9\u3001\u547d\u984c2.40\uff08\u672c\u6587107\u2013108\u9801\uff09\u3001\u5b9a\u74062.42\u30fb\u7cfb2.43\uff08\u672c\u6587109\u9801\uff09\u30022026\u5e7410\u670823\u65e5\u306b\u53d6\u5f97\u3057\u305f\u540c\u7248\u3092\u53c2\u7167\u3002\u4e09\u7d50\u679c\u306e\u884c\u5217\u4f8b\u3001\u6bd4\u8f03\u56f3\u3001\u6570\u5024\u7167\u5408\u306f\u72ec\u81ea\u4f5c\u6210\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u91cf\u5b50\u30d3\u30c3\u30c8\u306e\u6e2c\u5b9a\u3068\u3044\u3048\u3070\u30010\u304b1\u306e\u4e8c\u3064\u306e\u7d50\u679c\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305d\u308c\u3067\u3082\u3001\u91cf\u5b50\u72b6\u614b\u304b\u3089\u4e09\u3064\u306e\u30e9\u30d9\u30eb\u306e\u3044\u305a\u308c\u304b\u3092\u8fd4\u3059\u6e2c\u5b9a\u306f\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u4e00\u822c\u5316\u6e2c\u5b9a\u3092\u8868\u3059POVM\u3068\u3001\u3088\u308a\u5927\u304d\u306a\u7a7a\u9593\u3067\u884c\u3046\u5c04\u5f71\u6e2c\u5b9a\u306e\u95a2\u4fc2\u3092\u898b\u308b\u3068\u3001\u7d50 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1359,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[30],"tags":[184],"class_list":["post-1361","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computing","tag-quantum-computers"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-naimark-povm-expanded-space-20261023-featured-2b082782826c.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1361"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1361\/revisions"}],"predecessor-version":[{"id":1362,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1361\/revisions\/1362"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1359"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}