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Quantum 'fifth state of matter' observed in space for first time

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Patrick Galey, Agence France-Presse

<div class="embed-wrap"><figure data-feedback="fb:likes,fb:comments"><img src="https://sa.kapamilya.com/absnews/abscbnnews/media/2020/afp/04/25/20200425-hubble-megallanic-cloud-nasa-esa-afp-s.jpg"/><figcaption>A handout photo made available by the European Space Agency on April 24, 2020 shows one of the most photogenic examples of the many turbulent stellar nurseries the NASA/ESA Hubble Space Telescope has observed during its 30-year lifetime. The portrait features the giant nebula NGC 2014 and its neighbor NGC 2020, which together form part of a vast star-forming region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way, approximately 163,000 light-years away. European Space Agency/Hubble/NASA/AFP</figcaption></figure></div> PARIS - Scientists have observed the fifth state of matter in space for the first time, offering unprecedented insight that could help solve some of the quantum universe&#x27;s most intractable conundrums, research showed Thursday.Bose-Einstein condensates (BECs) -- the existence of which was predicted by Albert Einstein and Indian mathematician Satyendra Nath Bose almost a century ago -- are formed when atoms of certain elements are cooled to near absolute zero (0 Kelvin, minus 273.15 Celsius). At this point, the atoms become a single entity with quantum properties, wherein each particle also functions as a wave of matter.BECs straddle the line between the macroscopic world governed by forces such as gravity and the microscopic plane, ruled by quantum mechanics.Scientists believe BECs contain vital clues to mysterious phenomena such as dark energy -- the unknown energy thought to be behind the Universe&#x27;s accelerating expansion. But BECs are extremely fragile. The slightest interaction with the external world is enough to warm them past their condensation threshold. This makes them nearly impossible for scientists to study on Earth, where gravity interferes with the magnetic fields required to hold them in place for observation. On Thursday a team of NASA scientists unveiled the first results from BEC experiments aboard the International Space Station, where particles can be manipulated free from Earthly constraints. &quot;Microgravity allows us to confine atoms with much weaker forces, since we don&#x27;t have to support them against gravity,&quot; Robert Thompson of the California Institute for Technology, Pasadena, told AFP. The research published in the journal Nature documents several startling differences in the properties of BECs created on Earth and those aboard the ISS. For one thing, BECs in terrestrial labs typically last a handful of milliseconds before dissipating. Aboard the ISS the BECs lasted more than a second, offering the team an unprecedented chance to study their properties.Microgravity also allowed the atoms to be manipulated by weaker magnetic fields, speeding their cooling and allowing clearer imaging. <div>&#x27;REMARKABLE&#x27; BREAKTHROUGH</div>Creating the fifth state of matter, especially within the physical confines of a space station, is no mean feat.First, bosons -- atoms that have an equal number of protons and electrons -- are cooled to absolute zero using lasers to clamp them in place. The slower the atoms move around, the cooler they become. As they lose heat, a magnetic field is introduced to keep them from moving and each particle&#x27;s wave expands, cramming many bosons into a microscopic &quot;trap&quot; that causes their waves to overlap into a single matter wave -- a property known as quantum degeneracy.The second the magnetic trap is released in order for scientists to study the condensate, however, the atoms begin to repel each other, causing the cloud to fly apart and the BEC to becomes too dilute to detect. Thompson and the team realized that the microgravity onboard the ISS allowed them to create BECs from rubidium -- a soft metal similar to potassium -- on a far shallower trap than on Earth. This accounted for the vastly increased time the condensate could be studied before diffusing. &quot;Most importantly we can observe the atoms as they float entirely unconfined (and hence unperturbed) by external forces,&quot; Thompson said.Previous studies trying to emulate the effect of weightlessness on BECs used airplanes in free fall, rockets and even apparatus dropped from various heights.Research team leader David Aveline told AFP that studying BECs in microgravity opened up a host of research opportunities.&quot;Applications range from tests of general relativity and searches for dark energy and gravitational waves to spacecraft navigation and prospecting for subsurface minerals on the moon and other planetary bodies,&quot; he said.

Scientists have observed the fifth state of matter in space for the first time, offering unprecedented insight that could help solve some of the quantum universe's most intractable conundrums, research showed Thursday.

Scientists have observed the fifth state of matter in space for the first time, offering unprecedented insight that could help solve some of the quantum universe's most intractable conundrums, research showed Thursday.

Quantum 'fifth state of matter' observed in space for first time

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Quantum 'fifth state of matter' observed in space for first time

Patrick Galey,

Agence France-Presse

Published June 11, 2020 06:31 PM PHT

Read More:

matter

fifth state of matter

space

quantum universe

BEC

Bose-Einstein condensates

AlbertEinstein

Satyendra Nath Bose

atoms

dark energy

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