(Phys.org) —Physicists at the National Institute of Standards and Technology (NIST) have demonstrated a compact atomic clock design that relies on cold rubidium atoms instead of the usual hot atoms, a switch that promises ...
General Physics
Nov 6, 2013
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Quantum annealing (QA) is a cutting-edge algorithm that leverages the unique properties of quantum computing to tackle complex combinatorial optimization problems (a class of mathematical problems dealing with discrete-variable ...
Quantum Physics
Oct 3, 2023
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For many years rubidium has been a workhorse in the investigation of ultracold atoms. Now JQI scientists are using Rb to cool another species, ytterbium, an element prized for its possible use in advanced optical clocks ...
Quantum Physics
Nov 12, 2015
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1261
Quasars are extraordinarily distant celestial objects that throw off a massive amount of light, and astrophysicists use them to probe cosmological theories.
General Physics
Apr 22, 2021
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A quantum system never relaxes. An isolated system (like a cloud of cold atoms trapped in optical grids) will endlessly oscillate between its different configurations without ever finding peace. In practice, these types of ...
Quantum Physics
May 28, 2015
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What time is it? The answer, no matter what your initial reference may be—a wristwatch, a smartphone, or an alarm clock—will always trace back to the atomic clock.
General Physics
Nov 12, 2014
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Quantum optics scientists and engineers are striving to harness the properties of small packets of light called photons to improve communications and computational devices. Vital to these efforts is an invisible connection ...
Quantum Physics
Oct 9, 2013
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Researchers at the RUDN University have developed a mathematical method to solve the quantum Coulomb three-body problem for bound states with high accuracy. They also showed that previous calculations performed by a group ...
Quantum Physics
Sep 19, 2018
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71
Using lasers to slow down atoms is a technique that has been used for a long time already: If one wants to achieve low-temperature world records in the range of absolute temperature zero, one resorts to laser cooling, in ...
Optics & Photonics
Feb 28, 2023
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89
Physicists at Linköping University have shown that a dose of hydrogen or helium can render the "super material" graphene even more useful.
Nanomaterials
Jan 12, 2012
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