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How to Focus a Bose-Einstein Condensate in a Waveguide
April 28, 2021•
Physics 14, s55
A new “lensing” technique counters the spreading of an ultracold cloud of atoms inside a tiny waveguide.
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An ultracold cloud of atoms spreads with time, just as a beam of light spreads in space, but an electromagnetic “lens” can “focus” the cloud and reduce its kinetic energy. The lowest energies yet achieved in the picokelvin (pK) range require large facilities that allow the atoms to fall freely for several seconds. Now researchers have demonstrated a lens that works in this regime with atoms in a ring-shaped waveguide less than a millimeter across [1]. Manipulating these “matter waves” in small spaces is essential for exploiting their quantum effects for purposes such as high-precision navigation.
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ColdQuanta Appoints Paul Lipman As Chief Commercial Officer
Addition of Experienced Technology Executive Builds on Series of Leadership Team Appointments as Cold Atom Quantum Technology Leader Moves from R&D Phase to Commercialization
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BOULDER, Colo., April 15, 2021 /PRNewswire/
ColdQuanta, the leader in Cold Atom Quantum Technology, today announced it appointed Paul Lipman to the position of Chief Commercial Officer. Over the past several years, ColdQuanta has developed world leading expertise in the most scalable, versatile, and commercially viable area of quantum - the Cold Atom Method. In his role, Lipman will be responsible for the commercialization strategy and go-to-market execution to bring ColdQuanta s quantum computing, RF sensing and inertial positioning offerings out of the lab and into commercial use.
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For The First Time, Scientists Have Performed Atom Interferometry in Space
14 APRIL 2021
To make some of the most precise measurements we can of the world around us, scientists tend to go small - right down to the atomic scale, using a technique called atom interferometry.
Now, for the first time, scientists have performed this kind of measurement in space, using a sounding rocket specially designed to carry science payloads into low-Earth space.
It s a significant step towards being able to perform matter-wave interferometry in space, for science applications that range from fundamental physics to navigation. We have established the technological basis for atom interferometry on board of a sounding rocket and demonstrated that such experiments are not only possible on Earth, but also in space, said physicist Patrick Windpassinger of Johannes Gutenberg University Mainz in Germany.
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