{"id":71464,"date":"2021-04-03T06:10:14","date_gmt":"2021-04-03T10:10:14","guid":{"rendered":"http:\/\/wavechronicle.com\/wave\/?p=71464"},"modified":"2021-03-22T01:21:46","modified_gmt":"2021-03-22T05:21:46","slug":"how-scientists-are-using-fuzziness-to-solve-the-mystery-of-quantum-gravity","status":"publish","type":"post","link":"https:\/\/wavechronicle.com\/wave\/?p=71464","title":{"rendered":"How Scientists Are Using Fuzziness To Solve the Mystery of Quantum Gravity"},"content":{"rendered":"<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">Gravitons could bridge the divide between general relativity and quantum mechanics. But efforts to find these hypothetical particles have proved tricky \u2014 until now. <\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/L5oCJhOVfyQ\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">Subscribe to Seeker! <\/span><a class=\"yt-simple-endpoint style-scope yt-formatted-string\" dir=\"auto\" spellcheck=\"false\" href=\"https:\/\/www.youtube.com\/redirect?event=video_description&amp;redir_token=QUFFLUhqbUhaMkpjLUU0T0ZqZFZQRnVPbXBYZUdPQWZuQXxBQ3Jtc0trQmNmc25yUTdSSGpwRjVrMUY4TVdLMFdfb2N6N3BaLThFQnBIdV9QVkRGNUprQVZQWHdwa0Ztbkc2b0JsZXhlQzVkSmd4VWJUb1l6QmRjMnIxMlRveGhfZU12TlVkMGdPRGNkZkktT3RqMVU5VFZIcw&amp;q=http%3A%2F%2Fbit.ly%2Fsubscribeseeker\" target=\"_blank\" rel=\"nofollow noopener\">http:\/\/bit.ly\/subscribeseeker<\/a><span class=\"style-scope yt-formatted-string\" dir=\"auto\">\u200b<\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">Watch more Elements! <\/span><a class=\"yt-simple-endpoint style-scope yt-formatted-string\" dir=\"auto\" spellcheck=\"false\" href=\"https:\/\/www.youtube.com\/redirect?event=video_description&amp;redir_token=QUFFLUhqbV9manlSX2lfVXVKNENiaC0tTmZOdnRialBGd3xBQ3Jtc0ttTm4tREQ5M3NobmlnUjBHZ1NwOXR6Ym1SUlR4Yzl5NjBJMWJNbE1Rd2Z5RlFPalZDZGRsdl9vZFNHc2xZeVRpS0plXzVHSVQzd1RpaVFtXy1LUmlDT056VmVhNVVwaUJ4b2RTU2JEMWFELThfeVhqSQ&amp;q=http%3A%2F%2Fbit.ly%2FElementsPlaylist\" target=\"_blank\" rel=\"nofollow noopener\">http:\/\/bit.ly\/ElementsPlaylist<\/a><span class=\"style-scope yt-formatted-string\" dir=\"auto\">\u200b<\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">Visit our shop at <\/span><a class=\"yt-simple-endpoint style-scope yt-formatted-string\" dir=\"auto\" spellcheck=\"false\" href=\"https:\/\/www.youtube.com\/redirect?event=video_description&amp;redir_token=QUFFLUhqa0dEU2EyRkdib1g4VTdhMVZpVFdnZWVVVVBPd3xBQ3Jtc0tuSmxLYzUxemNnejJlSVpYb1QyTmtCaU53UE5aMml2UGFsR3l2X2E4OGptc016T2V6N2VwSmNOcWdMM1ZLUndkZEFJMHlkLUFuemFEZjlqMHZBVmtNcGpPcEpQd3ZhSzExSlBCU1psRDE1NDVuUzdDVQ&amp;q=http%3A%2F%2Fshop.seeker.com\" target=\"_blank\" rel=\"nofollow noopener\">http:\/\/shop.seeker.com<\/a><span class=\"style-scope yt-formatted-string\" dir=\"auto\">\u200b<\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">The renowned physicist Freeman Dyson suggested that a hypothetical detector sensitive enough to observe a single graviton would be so massive that the detector itself would collapse into a black hole. But what if we\u2019re going about this the wrong way? What if instead of trying to find just one graviton, we search for a telltale sign that only a group of them can create? That\u2019s what three researchers proposed in a paper from October of 2020. <\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">The physicists were inspired by Brownian motion, which describes how particles in a fluid bounce around randomly. If gravity really is carried by bosons, then maybe they move around randomly too, creating a sort of \u201cnoise\u201d or fuzziness that existing gravitational wave detectors like LIGO can suss out. <\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">Of course, the noise has to be pronounced enough for LIGO to notice. It\u2019s a bit beyond the scope of this episode but just know that waves like light can come in different quantum states\u2014 in fact, LIGO uses light in a \u201csqueezed\u201d state for enhanced sensitivity The researchers calculated that gravitational waves in different quantum states would produce different amounts of noise.<\/span><\/p>\n<p><strong>Sources Cited<\/strong><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">How the Bits of Quantum Gravity Can Buzz <\/span><a class=\"yt-simple-endpoint style-scope yt-formatted-string\" dir=\"auto\" spellcheck=\"false\" href=\"https:\/\/www.youtube.com\/redirect?event=video_description&amp;redir_token=QUFFLUhqa2l6SHVKeTRrR1ZMUjVab3NzYy0tSVl5emg4QXxBQ3Jtc0trbzF6am1WbnpCY1VHemVnY2VzaWtfcnlwZzgyZTVyZEhFamxRQmFMZ2JzdGdLMkNhaHo5eHNFVVo3MEswNnFuRWlUWWJ5aTFzb1JEdnAwQk80RUZ0TUplN0ZWeFI1NGZ1dWVxWTdKRlpNazBrR19UYw&amp;q=https%3A%2F%2Fwww.quantamagazine.org%2Fgravitons-revealed-in-the-noise-of-gravitational-waves-20200723%2F\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/www.quantamagazine.org\/gravit&#8230;<\/a><span class=\"style-scope yt-formatted-string\" dir=\"auto\">\u200b<\/span><span class=\"style-scope yt-formatted-string\" dir=\"auto\"> &#8220;New calculations show how hypothetical particles called gravitons would give rise to a special kind of noise.&#8221; <\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">The Edge of Physics: Do Gravitons Really Exist? <\/span><a class=\"yt-simple-endpoint style-scope yt-formatted-string\" dir=\"auto\" spellcheck=\"false\" href=\"https:\/\/www.youtube.com\/redirect?event=video_description&amp;redir_token=QUFFLUhqbVd6MDNjX1JzRHFHNVBZYXpRVURrVFZ6UWVtQXxBQ3Jtc0tsNjdEZ2g3bmZuclUxeEdlZ0t5TDQtWjl5cFFiRDExRlRNMTc4RlR1TlNTai1rUzEzZi1PWFhmSm9zaDhwSE5aMVBTUll5NTAtSGRSb2dyTUdaa2t2aE92YjcxTnhSRS1MWWljQzV0OUJNQ1Jkc0FqZw&amp;q=https%3A%2F%2Ffuturism.com%2Fthe-edge-of-physics-do-gravitons-really-exist\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/futurism.com\/the-edge-of-phys&#8230;<\/a><span class=\"style-scope yt-formatted-string\" dir=\"auto\">\u200b<\/span><span class=\"style-scope yt-formatted-string\" dir=\"auto\"> &#8220;In an attempt to marry gravity with quantum theory, physicists came up with a hypothetical particle\u2014the graviton. The graviton is said to be a massless, stable, spin-2 particle that travels at the speed of light.&#8221; <\/span><\/p>\n<p><span class=\"style-scope yt-formatted-string\" dir=\"auto\">Is Gravity Quantum? <\/span><a class=\"yt-simple-endpoint style-scope yt-formatted-string\" dir=\"auto\" spellcheck=\"false\" href=\"https:\/\/www.youtube.com\/redirect?event=video_description&amp;redir_token=QUFFLUhqbDBBZXJLZThGNS1YeGE3SjR0Zkl0S3hMTkJ2UXxBQ3Jtc0ttbi1nUkdXVVJHUXpIczBYZy0yVUdCZlo2aFFZNjdFYXBDdkl2c0RmNDJ3ZjdnUHh0cnp1eUdlWWUyMkk4ZEdKS0ptQzZiT1QwZ0VPbEpTZkZkM1VFZzJTS2dVdTZhblJzd1pSWXphTEktYzVIUF9iVQ&amp;q=https%3A%2F%2Fwww.scientificamerican.com%2Farticle%2Fis-gravity-quantum%2F\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/www.scientificamerican.com\/ar&#8230;<\/a><span class=\"style-scope yt-formatted-string\" dir=\"auto\">\u200b<\/span><span class=\"style-scope yt-formatted-string\" dir=\"auto\"> &#8220;To directly observe the minuscule effects a graviton would have on matter, physicist Freeman Dyson famously noted, a graviton detector would have to be so massive that it collapses on itself to form a black hole.&#8221;<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gravitons could bridge the divide between general relativity and quantum mechanics. But efforts to find these hypothetical particles have proved tricky \u2014 until now. Subscribe to Seeker! http:\/\/bit.ly\/subscribeseeker\u200b Watch more Elements! http:\/\/bit.ly\/ElementsPlaylist\u200b Visit our shop at http:\/\/shop.seeker.com\u200b The renowned physicist Freeman Dyson suggested that a hypothetical detector sensitive enough to observe a single graviton would be so massive that the detector itself would collapse into a black hole. But what if we\u2019re going about this the wrong way? What if instead of trying to find just one graviton, we search for a telltale sign that only a group of them can create? That\u2019s what three researchers proposed in a paper from October of 2020. The physicists were inspired by Brownian motion, which describes how particles in a fluid bounce around randomly. If gravity really is carried by bosons, then maybe they move around randomly too, creating a sort of \u201cnoise\u201d or fuzziness that existing gravitational wave detectors like LIGO can suss out. Of course, the noise has to be pronounced enough for LIGO to notice. It\u2019s a bit beyond the scope of this episode but just know that waves like light can come in different quantum states\u2014 in fact, LIGO uses light in a \u201csqueezed\u201d state for enhanced sensitivity The researchers calculated that gravitational waves in different quantum states would produce different amounts of noise. Sources Cited How the Bits of Quantum Gravity Can Buzz https:\/\/www.quantamagazine.org\/gravit&#8230;\u200b &#8220;New calculations show how hypothetical particles called gravitons would give rise to a special kind of noise.&#8221; The Edge of Physics: Do Gravitons Really Exist? https:\/\/futurism.com\/the-edge-of-phys&#8230;\u200b &#8220;In an attempt to marry gravity with quantum theory, physicists came up with a hypothetical particle\u2014the graviton. The graviton is said to be a massless, stable, spin-2 particle that travels at the speed of light.&#8221; Is Gravity Quantum? https:\/\/www.scientificamerican.com\/ar&#8230;\u200b &#8220;To directly observe the minuscule effects a graviton would have on matter, physicist Freeman Dyson famously noted, a graviton detector would have to be so massive that it collapses on itself to form a black hole.&#8221;<\/p>\n","protected":false},"author":6,"featured_media":8539,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127],"tags":[97,551,1302],"class_list":["post-71464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-edu","tag-education","tag-education-saturday","tag-seeker"],"acf":[],"_links":{"self":[{"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/posts\/71464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=71464"}],"version-history":[{"count":1,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/posts\/71464\/revisions"}],"predecessor-version":[{"id":71465,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/posts\/71464\/revisions\/71465"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=\/wp\/v2\/media\/8539"}],"wp:attachment":[{"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=71464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=71464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wavechronicle.com\/wave\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=71464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}