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href=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-qubit-tomography-measurement-bases-20261023-figure-e7cf91b7c3d2.png\"><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-qubit-tomography-measurement-bases-20261023-figure-e7cf91b7c3d2.png\" alt=\"\u4e09\u3064\u306e\u72b6\u614b\u306fZ\u65b9\u5411\u306e\u6b63\u5074\u78ba\u7387\u304c\u5168\u30660.5\u3002X\u65b9\u5411\u3067\u306f\u30d7\u30e9\u30b9\u72b6\u614b\u304c1\u3001Y\u65b9\u5411\u3067\u306f\u30d7\u30e9\u30b9i\u72b6\u614b\u304c1\u3068\u306a\u308a\u3001\u5b8c\u5168\u6df7\u5408\u72b6\u614b\u306f\u5168\u65b9\u5411\u30670.5\u3002\" style=\"width:100%;height:auto;max-width:1080px\" 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u5408\u3001\u96c6\u8a08\u3057\u305f\u7d50\u679c\u3092\u4e00\u3064\u306e\u56fa\u5b9a\u3057\u305f\u72b6\u614b\u306e\u63a8\u5b9a\u3068\u3057\u3066\u6271\u3048\u308b\u304b\u3082\u5225\u306b\u70b9\u691c\u3057\u307e\u3059\u3002<\/p>\n<h2>\u63a8\u5b9a\u3057\u305f\u6570\u5024\u304c\u3001\u7403\u306e\u5916\u3078\u51fa\u308b\u5834\u5408<\/h2>\n<p>\u7406\u60f3\u7684\u306a\u78ba\u7387\u304b\u3089\u8a08\u7b97\u3059\u308b\u3068\u304d\u3068\u9055\u3044\u3001\u6709\u9650\u56de\u306e\u6e2c\u5b9a\u306b\u306f\u7d71\u8a08\u7684\u306a\u3070\u3089\u3064\u304d\u304c\u3042\u308a\u307e\u3059\u3002\u8aac\u660e\u7528\u306b\u3001X\u3067\uff0b90\u56de\u30fb\u221210\u56de\u3001Y\u3067\u3082\uff0b90\u56de\u30fb\u221210\u56de\u3001Z\u3067\uff0b50\u56de\u30fb\u221250\u56de\u3068\u3044\u3046\u4eba\u5de5\u7684\u306a\u96c6\u8a08\u3092\u8003\u3048\u307e\u3059\u3002\u3053\u308c\u306f\u5b9f\u6a5f\u306e\u6e2c\u5b9a\u8a18\u9332\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u5f0f\u3078\u305d\u306e\u307e\u307e\u5165\u308c\u308b\u3068\u3001\u30d6\u30ed\u30c3\u30db\u30d9\u30af\u30c8\u30eb\u306f(0.8,0.8,0)\u306b\u306a\u308a\u3001\u9577\u3055\u306f\u7d041.131\u3067\u3059\u3002\u5bfe\u5fdc\u3059\u308b\u884c\u5217\u306e\u56fa\u6709\u5024\u3092\u8a08\u7b97\u3059\u308b\u3068\u3001\u7d041.066\u3068\u22120.066\u306b\u306a\u308a\u307e\u3059\u3002\u56fa\u6709\u5024\u306f\u884c\u5217\u3092\u5225\u306e\u57fa\u6e96\u3067\u898b\u305f\u3068\u304d\u306e\u91cd\u307f\u306b\u5bfe\u5fdc\u3057\u3001\u8ca0\u306e\u5024\u3092\u542b\u3080\u3053\u306e\u884c\u5217\u306f\u3001\u7269\u7406\u7684\u306a\u5bc6\u5ea6\u884c\u5217\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3057\u307e\u305b\u3093\u3002\u5165\u529b\u3057\u305f\u5404\u96c6\u8a08\u304c\u6b63\u306e\u56de\u6570\u3067\u3042\u308b\u3060\u3051\u3067\u306f\u3001\u4e09\u65b9\u5411\u3092\u307e\u3068\u3081\u305f\u884c\u5217\u306e\u6210\u7acb\u307e\u3067\u306f\u4fdd\u8a3c\u3057\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u554f\u984c\u306b\u5bfe\u3057\u3001\u63a8\u5b9a\u306e\u6bb5\u968e\u3067\u6210\u7acb\u6761\u4ef6\u3092\u8ab2\u3057\u305f\u308a\u3001\u63a8\u5b9a\u5f8c\u306e\u884c\u5217\u3092\u8abf\u6574\u3057\u305f\u308a\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002Qiskit Experiments 0.14.2\u306e\u516c\u5f0f\u4f8b\u3067\u306f\u3001\u65e2\u5b9a\u306e\u7dda\u5f62\u53cd\u8ee2\u3067\u5f97\u305f\u884c\u5217\u306b\u3064\u3044\u3066\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u56fa\u6709\u5024\u3092\u8abf\u6574\u3057\u307e\u3059\u3002\u751f\u306e\u56fa\u6709\u5024\u3092\u793a\u3059raw_eigvals\u3001\u8abf\u6574\u5f8c\u306eeigvals\u3001\u8abf\u6574\u3092\u884c\u3063\u305f\u304b\u306erescaled_psd\u3092\u533a\u5225\u3057\u3066\u8a18\u9332\u3067\u304d\u307e\u3059\u3002[3]<\/p>\n<p>\u88dc\u6b63\u5f8c\u306b\u8ca0\u306e\u56fa\u6709\u5024\u304c\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u306f\u3001\u6709\u9650\u56de\u6e2c\u5b9a\u306e\u4e0d\u78ba\u304b\u3055\u304c\u6d88\u3048\u305f\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u672c\u7a3f\u306e\u4eba\u5de5\u4f8b\u3067\u3082\u3001\u300c\u8ca0\u306e\u5024\u304c\u51fa\u305f\u306e\u3067\u88c5\u7f6e\u304c\u6545\u969c\u3057\u305f\u300d\u3068\u76f4\u7d50\u3055\u305b\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6e2c\u5b9a\u56de\u6570\u3001\u6e96\u5099\u3068\u6e2c\u5b9a\u306e\u5b89\u5b9a\u6027\u3001\u63a8\u5b9a\u65b9\u6cd5\u3001\u88dc\u6b63\u524d\u5f8c\u306e\u5dee\u3092\u5206\u3051\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002\u9006\u306b\u3001\u6210\u7acb\u3059\u308b\u884c\u5217\u304c\u8fd4\u3063\u305f\u3053\u3068\u3060\u3051\u3092\u3001\u6e96\u5099\u3057\u305f\u304b\u3063\u305f\u72b6\u614b\u306b\u5341\u5206\u8fd1\u3044\u8a3c\u62e0\u3068\u3057\u3066\u4f7f\u308f\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2>\u7d50\u679c\u3092\u6bd4\u3079\u308b\u3068\u304d\u306b\u3001\u6b8b\u3057\u3066\u304a\u304d\u305f\u3044\u60c5\u5831<\/h2>\n<p>\u30c8\u30e2\u30b0\u30e9\u30d5\u30a3\u30fc\u306e\u5831\u544a\u3067\u306f\u3001\u63a8\u5b9a\u3057\u305f\u884c\u5217\u3084\u56f3\u306b\u52a0\u3048\u3001\u3069\u306e\u57fa\u6e96\u3067\u4f55\u56de\u6e2c\u3063\u305f\u304b\u3001\u96c6\u8a08\u524d\u306e\u6e96\u5099\u6761\u4ef6\u3001\u63a1\u7528\u3057\u305f\u63a8\u5b9a\u65b9\u6cd5\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u57fa\u6e96\u3054\u3068\u306e\u56de\u6570\u304c\u7570\u306a\u308b\u306a\u3089\u3001\u540c\u3058\u7cbe\u5ea6\u306e\u4e09\u3064\u306e\u5024\u3068\u3057\u3066\u6271\u3063\u3066\u3088\u3044\u304b\u3082\u691c\u8a0e\u304c\u5fc5\u8981\u3067\u3059\u3002\u8aad\u307f\u51fa\u3057\u306e\u8aa4\u5dee\u3084\u6e96\u5099\u306e\u305a\u308c\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u3082\u3001\u72b6\u614b\u305d\u306e\u3082\u306e\u306e\u6027\u8cea\u3068\u5206\u3051\u307e\u3059\u3002<\/p>\n<p>\u672c\u7a3f\u3067\u306f\u7406\u60f3\u78ba\u7387\u3068\u4eba\u5de5\u7684\u306a\u96c6\u8a08\u304b\u3089\u306e\u884c\u5217\u8a08\u7b97\u3092\u5b9f\u884c\u3057\u307e\u3057\u305f\u3002\u91cf\u5b50\u5b9f\u6a5f\u3078\u306e\u9001\u4fe1\u3001\u88c5\u7f6e\u6027\u80fd\u306e\u6e2c\u5b9a\u3001Qiskit Experiments\u306b\u3088\u308b\u88dc\u6b63\u51e6\u7406\u306e\u5b9f\u884c\u306f\u3057\u3066\u3044\u307e\u305b\u3093\u3002Z\u3060\u3051\u3067\u898b\u3048\u308b\u60c5\u5831\u3001\u4ed6\u306e\u57fa\u6e96\u3092\u52a0\u3048\u3066\u5f97\u308b\u60c5\u5831\u3001\u9650\u3089\u308c\u305f\u56de\u6570\u304b\u3089\u63a8\u5b9a\u3059\u308b\u969b\u306e\u6761\u4ef6\u3092\u5206\u3051\u308b\u3053\u3068\u3067\u3001\u56f3\u304c\u304d\u308c\u3044\u306b\u518d\u69cb\u6210\u3055\u308c\u305f\u3068\u3044\u3046\u5370\u8c61\u304b\u3089\u4e00\u6b69\u9032\u3093\u3067\u7d50\u679c\u3092\u8aad\u3081\u307e\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ol>\n<li>IBM Quantum Learning\u3001<a href=\"https:\/\/quantum.cloud.ibm.com\/learning\/en\/courses\/general-formulation-of-quantum-information\/density-matrices\/bloch-sphere\">Bloch sphere<\/a>\u3001\u30d1\u30a6\u30ea\u884c\u5217\u306b\u3088\u308b\u8868\u73fe\u3001\u516d\u3064\u306e\u72b6\u614b\u3001\u6df7\u5408\u72b6\u614b\u306e\u7bc0\u3002\u539f\u8cc7\u6599\u306e\u7403\u9762\u56f3\u3082\u691c\u8a0e\u3057\u3001\u672c\u7a3f\u3067\u306f\u72ec\u81ea\u8a08\u7b97\u306e\u6bd4\u8f03\u8868\u3092\u7528\u3044\u305f\u3002<\/li>\n<li>Qiskit Experiments 0.14.2\u3001<a href=\"https:\/\/qiskit-community.github.io\/qiskit-experiments\/stubs\/qiskit_experiments.library.tomography.basis.PauliMeasurementBasis.html\">PauliMeasurementBasis<\/a>\u3001\u5358\u4e00\u91cf\u5b50\u30d3\u30c3\u30c8\u306e\u6e2c\u5b9a\u57fa\u6e96\u3068POVM\u884c\u5217\u3002<\/li>\n<li>\u540c\u3001<a href=\"https:\/\/qiskit-community.github.io\/qiskit-experiments\/manuals\/verification\/state_tomography.html\">Quantum State Tomography<\/a>\u3001\u72b6\u614b\u306e\u518d\u6e96\u5099\u3068\u6e2c\u5b9a\u3001\u7dda\u5f62\u53cd\u8ee2\u3001\u56fa\u6709\u5024\u306e\u518d\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u3002\u4eba\u5de5\u7684\u306a\u56de\u6570\u4f8b\u3068\u6570\u5024\u8a08\u7b97\u306f\u672c\u7a3f\u72ec\u81ea\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u91cf\u5b50\u30d3\u30c3\u30c8\u3092\u4f55\u5ea6\u3082\u6e2c\u308b\u3068\u30010\u30681\u304c\u307b\u307c\u534a\u5206\u305a\u3064\u51fa\u305f\u3002\u3053\u306e\u7d50\u679c\u3060\u3051\u304b\u3089\u3001\u3069\u306e\u91cf\u5b50\u72b6\u614b\u3092\u6e96\u5099\u3067\u304d\u305f\u304b\u307e\u3067\u5206\u304b\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u5b9f\u306f\u3001\u540c\u30580\u30681\u306e\u78ba\u7387\u3092\u793a\u3059\u5225\u3005\u306e\u72b6\u614b\u304c\u3042\u308a\u307e\u3059\u3002\u72b6\u614b\u30c8\u30e2\u30b0\u30e9\u30d5\u30a3\u30fc\u306f\u3001\u6e2c\u5b9a\u3059\u308b\u57fa\u6e96\u3092\u5909\u3048\u3066\u96c6\u3081\u305f\u7d50\u679c [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1323,"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-1325","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-qubit-tomography-measurement-bases-20261023-featured-5c40b2317621.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1325","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=1325"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1325\/revisions"}],"predecessor-version":[{"id":1326,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1325\/revisions\/1326"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1323"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}