{"id":455668,"date":"2026-02-05T14:59:08","date_gmt":"2026-02-05T14:59:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/455668\/"},"modified":"2026-02-05T14:59:08","modified_gmt":"2026-02-05T14:59:08","slug":"record-smashed-for-largest-object-to-be-seen-as-a-quantum-wave-sciencealert","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/455668\/","title":{"rendered":"Record Smashed For Largest Object to Be Seen as a Quantum Wave : ScienceAlert"},"content":{"rendered":"

A microscopic clump of sodium has become the largest object ever to be observed as a wave, improving upon previous records<\/a> by thousands of atoms.<\/p>\n

Quantum physics defines particles in terms of waves, which effectively means all matter exists in a muddle of many possible states at once \u2013 known as a superposition \u2013 before being measured.<\/p>\n

Though most obvious on the sub-atomic scale of electrons and photons, all things, from atoms to humans to whole galaxies and beyond, exist in superpositions. In theory, at least. Observing this on ever-larger scales is challenging (if not potentially impossible<\/a>).<\/p>\n

In a new study, researchers from the University of Vienna in Austria and the University of Duisburg-Essen in Germany report one of the largest objects observed in a superposition. The particle measured roughly 8 nanometers in diameter, and at more than 170,000 atomic mass units, was more massive than many proteins.<\/p>\n

\"scalesThe sodium clusters behaved as quantum particles at about 200,000 atomic mass units, a size and mass comparable with those of large proteins and small viruses<\/a>. (Pedalino et al., Nature, 2026)<\/p>\n

Their experiment shows that even nanoparticles of sodium, each with thousands of individual atoms, follow the rules of quantum mechanics, despite their relatively enormous size.<\/p>\n

“Intuitively, one would expect such a large lump of metal to behave like a classical particle,” says<\/a> lead author Sebastian Pedalino, a graduate student at the University of Vienna.<\/p>\n

“The fact that it still interferes shows that quantum mechanics is valid even on this scale and does not require alternative models.”<\/p>\n

The researchers sent the super-cooled particles through an interferometer that featured a series of diffraction gratings<\/a> generated by ultraviolet lasers.<\/p>\n

After an initial grating channeled the particles through small spaces, they moved onward in waves that measured between 10 and 22 quadrillionths of a meter. This brought them into a superposition of possible paths through the device, which researchers could detect with another grating at the end of the line.<\/p>\n

This finding suggests the particles’ positions are not fixed during the unobserved portion of their journey. The particles exhibited<\/a> a “delocalization” effect many times larger than the size of any individual particle.<\/p>\n

\"Subscribe<\/a><\/p>\n

At larger scales, matter generally becomes too complex and entangled with the environment for individual superpositions to be distinguishable. Known as quantum decoherence<\/a>, this collapse from a superposition to a definable position may explain why we don’t observe quantum mechanics in macroscopic systems.<\/p>\n

Related: Scientists Just Admitted Nobody Really Gets Quantum Physics<\/a><\/p>\n

Yet there is no defined size limit on quantum mechanics, and as the new study illustrates, we are not as far removed from it as we might think.<\/p>\n

As previous research has suggested, perhaps the different possibilities represented by quantum superposition are all equally valid \u2013 and rather than collapsing into a single reality, instead branch out to form a multiverse<\/a> of possibilities.<\/p>\n

The study was published in Nature<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"A microscopic clump of sodium has become the largest object ever to be observed as a wave, improving…\n","protected":false},"author":2,"featured_media":455669,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[49,48,315,314,66],"class_list":{"0":"post-455668","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-physics","8":"tag-ca","9":"tag-canada","10":"tag-msft-content","11":"tag-physics","12":"tag-science"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/455668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/comments?post=455668"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/455668\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media\/455669"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media?parent=455668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/categories?post=455668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/tags?post=455668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}