{"id":12710,"date":"2024-07-01T21:22:30","date_gmt":"2024-07-01T21:22:30","guid":{"rendered":"https:\/\/scienmag.com\/worlds-most-accurate-and-precise-atomic-clock-pushes-new-frontiers-in-physics\/"},"modified":"2024-07-01T21:22:30","modified_gmt":"2024-07-01T21:22:30","slug":"worlds-most-accurate-and-precise-atomic-clock-pushes-new-frontiers-in-physics","status":"publish","type":"post","link":"https:\/\/scienmag.com\/worlds-most-accurate-and-precise-atomic-clock-pushes-new-frontiers-in-physics\/","title":{"rendered":"World\u2019s most accurate and precise atomic clock pushes new frontiers in physics"},"content":{"rendered":"

In humankind\u2019s ever-ticking pursuit of perfection, scientists have developed an atomic clock that is more precise and accurate than any clock previously created. The new clock was built by researchers at JILA, a joint institution of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder.\u00a0<\/p>\n

\"Optical<\/p>\n

Credit: K. Palubicki\/NIST<\/p>\n

<\/p>\n

\n

In humankind\u2019s ever-ticking pursuit of perfection, scientists have developed an atomic clock that is more precise and accurate than any clock previously created. The new clock was built by researchers at JILA, a joint institution of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder.\u00a0<\/p>\n

Enabling pinpoint navigation in the vast expanse of space as well as searches for new particles, this clock is the latest to transcend mere timekeeping. With their increased precision, these next-generation timekeepers could reveal hidden underground mineral deposits and test fundamental theories such as general relativity with unprecedented rigor. For atomic-clock architects, it\u2019s not just about building a better clock; it\u2019s about unraveling the secrets of the universe and paving the way for technologies that will shape our world for generations to come.\u00a0<\/p>\n

The worldwide scientific community is considering\u00a0redefining the second<\/a>, the international unit of time, based on these next-generation optical atomic clocks. Existing-generation atomic clocks shine microwaves on atoms to measure the second. This new wave of clocks illuminates atoms with visible light waves, which have a much higher frequency, to count out the second much more precisely. Compared with current microwave clocks, optical clocks are expected to deliver much higher accuracy for international timekeeping \u2014 potentially losing only one second every 30 billion years. \u00a0\u00a0<\/p>\n

But before these atomic clocks can perform with such high accuracy, they need to have very high precision; in other words, they must be able to measure extremely tiny fractions of a second. Achieving both high precision and high accuracy could have vast implications.\u00a0<\/p>\n

Trapped in Time\u00a0<\/h2>\n

The new JILA clock uses a web of light known as an\u00a0\u201coptical lattice\u201d\u00a0to trap and measure tens of thousands of individual atoms simultaneously. Having such a large ensemble provides a huge advantage in precision. The more atoms measured, the more data the clock has for yielding a precise measurement of the second.\u00a0<\/p>\n

To achieve new record-breaking performance, the JILA researchers used a shallower, gentler\u00a0\u201cweb\u201d\u00a0of laser light to trap the atoms, compared with previous optical lattice clocks. This significantly reduced two major sources of error \u2014 effects from the laser light that traps the atoms, and atoms bumping into one another when they are packed too tightly.\u00a0<\/p>\n

The researchers describe their advances in\u00a0Physical Review Letters.\u00a0<\/em><\/p>\n

Clocking Relativity on the Smallest Scales\u00a0<\/h2>\n

\u201cThis clock is so precise that it can detect tiny effects predicted by theories such as general relativity, even at the microscopic scale,\u201d said NIST and JILA physicist Jun Ye. \u201cIt\u2019s pushing the boundaries of what\u2019s possible with timekeeping.\u201d\u00a0<\/p>\n

General relativity<\/a>\u00a0is Einstein\u2019s theory that describes how gravity is caused by the warping of space and time. One of the key predictions of general relativity is that time itself is affected by gravity \u2014 the stronger the gravitational field, the slower time passes. \u00a0<\/p>\n

This new clock design can allow detection of relativistic effects on timekeeping at the submillimeter scale, about the thickness of a single human hair. Raising or lowering the clock by that minuscule distance is enough for researchers to discern a tiny change in the flow of time caused by gravity\u2019s effects. \u00a0<\/p>\n

This ability to observe the effects of general relativity at the microscopic scale can significantly bridge the gap between the microscopic quantum realm and the large-scale phenomena described by general relativity.<\/p>\n

Navigating Space and Quantum Advances\u00a0<\/h2>\n

More precise atomic clocks also enable more accurate navigation and exploration in space. As humans venture farther into the solar system, clocks will need to keep precise time over vast distances. Even tiny errors in timekeeping can lead to navigation errors that grow exponentially the farther you travel.\u00a0<\/p>\n

\u201cIf we want to land a spacecraft on Mars with pinpoint accuracy, we’re going to need clocks that are orders of magnitude more precise than what we have today in GPS,\u201d\u00a0said Ye.\u00a0\u201cThis new clock is a major step towards making that possible.\u201d\u00a0<\/p>\n

The same methods used to trap and control the atoms could also produce breakthroughs in quantum computing. Quantum computers need to be able to precisely manipulate the internal properties of individual atoms or molecules to perform computations. The progress in controlling and measuring microscopic quantum systems has significantly advanced this endeavor.\u00a0<\/p>\n

By venturing into the microscopic realm where the theories of quantum mechanics and general relativity intersect, researchers are cracking open a door to new levels of understanding about the fundamental nature of reality itself. From the infinitesimal scales where the flow of time becomes distorted by gravity, to the vast cosmic frontiers where dark matter and dark energy hold sway, this clock\u2019s exquisite precision promises to illuminate some of the universe’s deepest mysteries.\u00a0<\/p>\n

\u201cWe’re exploring the frontiers of measurement science,\u201d\u00a0Ye said.\u00a0\u201cWhen you can measure things with this level of precision, you start to see phenomena that we’ve only been able to theorize about until now.\u201d\u00a0<\/p>\n

In humankind\u2019s ever-ticking pursuit of perfection, scientists have developed an atomic clock that is more precise and accurate than any clock previously created. The new clock was built by researchers at JILA, a joint institution of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder.\u00a0<\/p>\n

Enabling pinpoint navigation in the vast expanse of space as well as searches for new particles, this clock is the latest to transcend mere timekeeping. With their increased precision, these next-generation timekeepers could reveal hidden underground mineral deposits and test fundamental theories such as general relativity with unprecedented rigor. For atomic-clock architects, it\u2019s not just about building a better clock; it\u2019s about unraveling the secrets of the universe and paving the way for technologies that will shape our world for generations to come.\u00a0<\/p>\n

The worldwide scientific community is considering\u00a0redefining the second<\/a>, the international unit of time, based on these next-generation optical atomic clocks. Existing-generation atomic clocks shine microwaves on atoms to measure the second. This new wave of clocks illuminates atoms with visible light waves, which have a much higher frequency, to count out the second much more precisely. Compared with current microwave clocks, optical clocks are expected to deliver much higher accuracy for international timekeeping \u2014 potentially losing only one second every 30 billion years. \u00a0\u00a0<\/p>\n

But before these atomic clocks can perform with such high accuracy, they need to have very high precision; in other words, they must be able to measure extremely tiny fractions of a second. Achieving both high precision and high accuracy could have vast implications.\u00a0<\/p>\n

Trapped in Time\u00a0<\/h2>\n

The new JILA clock uses a web of light known as an\u00a0\u201coptical lattice\u201d\u00a0to trap and measure tens of thousands of individual atoms simultaneously. Having such a large ensemble provides a huge advantage in precision. The more atoms measured, the more data the clock has for yielding a precise measurement of the second.\u00a0<\/p>\n

To achieve new record-breaking performance, the JILA researchers used a shallower, gentler\u00a0\u201cweb\u201d\u00a0of laser light to trap the atoms, compared with previous optical lattice clocks. This significantly reduced two major sources of error \u2014 effects from the laser light that traps the atoms, and atoms bumping into one another when they are packed too tightly.\u00a0<\/p>\n

The researchers describe their advances in\u00a0Physical Review Letters.\u00a0<\/em><\/p>\n

Clocking Relativity on the Smallest Scales\u00a0<\/h2>\n

\u201cThis clock is so precise that it can detect tiny effects predicted by theories such as general relativity, even at the microscopic scale,\u201d said NIST and JILA physicist Jun Ye. \u201cIt\u2019s pushing the boundaries of what\u2019s possible with timekeeping.\u201d\u00a0<\/p>\n

General relativity<\/a>\u00a0is Einstein\u2019s theory that describes how gravity is caused by the warping of space and time. One of the key predictions of general relativity is that time itself is affected by gravity \u2014 the stronger the gravitational field, the slower time passes. \u00a0<\/p>\n

This new clock design can allow detection of relativistic effects on timekeeping at the submillimeter scale, about the thickness of a single human hair. Raising or lowering the clock by that minuscule distance is enough for researchers to discern a tiny change in the flow of time caused by gravity\u2019s effects. \u00a0<\/p>\n

This ability to observe the effects of general relativity at the microscopic scale can significantly bridge the gap between the microscopic quantum realm and the large-scale phenomena described by general relativity.<\/p>\n

Navigating Space and Quantum Advances\u00a0<\/h2>\n

More precise atomic clocks also enable more accurate navigation and exploration in space. As humans venture farther into the solar system, clocks will need to keep precise time over vast distances. Even tiny errors in timekeeping can lead to navigation errors that grow exponentially the farther you travel.\u00a0<\/p>\n

\u201cIf we want to land a spacecraft on Mars with pinpoint accuracy, we’re going to need clocks that are orders of magnitude more precise than what we have today in GPS,\u201d\u00a0said Ye.\u00a0\u201cThis new clock is a major step towards making that possible.\u201d\u00a0<\/p>\n

The same methods used to trap and control the atoms could also produce breakthroughs in quantum computing. Quantum computers need to be able to precisely manipulate the internal properties of individual atoms or molecules to perform computations. The progress in controlling and measuring microscopic quantum systems has significantly advanced this endeavor.\u00a0<\/p>\n

By venturing into the microscopic realm where the theories of quantum mechanics and general relativity intersect, researchers are cracking open a door to new levels of understanding about the fundamental nature of reality itself. From the infinitesimal scales where the flow of time becomes distorted by gravity, to the vast cosmic frontiers where dark matter and dark energy hold sway, this clock\u2019s exquisite precision promises to illuminate some of the universe’s deepest mysteries.\u00a0<\/p>\n

\u201cWe’re exploring the frontiers of measurement science,\u201d\u00a0Ye said.\u00a0\u201cWhen you can measure things with this level of precision, you start to see phenomena that we’ve only been able to theorize about until now.\u201d\u00a0<\/p>\n

\n
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Journal<\/h4>\n

Physical Review Letters<\/p>\n<\/p><\/div>\n

\n

Article Title<\/h4>\n

A clock with 8\u00d710\u221219 systematic uncertainty<\/p>\n<\/p><\/div>\n

\n

Article Publication Date<\/h4>\n

10-Jul-2024<\/p>\n<\/p><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

In humankind\u2019s ever-ticking pursuit of perfection, scientists have developed an atomic clock that is more precise and accurate than any clock previously created. The new clock was built by researchers at JILA, a joint institution of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder.\u00a0 Credit: K. Palubicki\/NIST In humankind\u2019s […]<\/p>\n","protected":false},"author":1,"featured_media":12711,"comment_status":"","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[19],"tags":[],"class_list":["post-12710","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology-and-engineering"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/scienmag.com\/wp-content\/uploads\/2024\/07\/Worlds-most-accurate-and-precise-atomic-clock-pushes-new-frontiers.jpeg","jetpack_likes_enabled":false,"_links":{"self":[{"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/posts\/12710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/comments?post=12710"}],"version-history":[{"count":0,"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/posts\/12710\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/media\/12711"}],"wp:attachment":[{"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/media?parent=12710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/categories?post=12710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienmag.com\/wp-json\/wp\/v2\/tags?post=12710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} Science

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