Tag Archives: laser cooling
A giant leap closer to the continuous atom laser
Physicists have created a steady-state Bose-Einstein condensate – a long-sought feat that opens the door to a variety of applications, including in holography and quantum computing. Continue reading
Posted in Scicomm
Tagged atom laser, Bose stimulation, Bose-Einstein condensate, laser cooling, matter-wave, phase coherence, spatial coherence, University of Amsterdam, Wolfgang Ketterle
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When cooling down really means slowing down
Consider this post the latest in a loosely defined series about atomic cooling techniques that I’ve been writing since June 2018. Atoms can’t run a temperature, but things made up of atoms, like a chair or table, can become hotter … Continue reading
Posted in Scicomm
Tagged Albert Einstein, atomic cooling, atomic trap, Bose-Einstein condensate, Bose-Einstein statistics, Carl Wieman, Claude Cohen-Tannoudji, collisional cooling, diatomic molecules, Eric Cornell, Harvard University, laser cooling, Massachusetts Institute of Technoogy, NaLi, niobium nitride, quantum chemistry, quantum computing, S Pancharatnam, Satyendra Nath Bose, Shivaramakrishnan Pancharatnam, Sisyphus cooling, spin polarization, superconductors, superfluids, University of Waterloo, Wolfgang Ketterle
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The trouble with laser-cooling anions
For scientists to use lasers to cool an atom, the atom needs to have two energy states. When laser light is shined on an atom moving towards the source of light, one of its electrons absorbs a photon, climbs to … Continue reading
Posted in Scicomm
Tagged adiabatic cooling, anions, atomic cooling, cerium, diatomic carbon, Doppler cooling, electron affinity, hyperfine structure, ion trap, laser cooling, laser-assisted evaporative cooling, microkelvin, nuclear spin, Sisyphus cooling, Sivaramakrishnan Pancharatnam, sympathetic cooling
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Relativity’s kin, the Bose-Einstein condensate, is 90 now
The BEC was Einstein’s last major prediction and it took a revolution in quantum optics to be realised. Continue reading
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Tagged Bose-Einstein condensate, laser cooling, magnetic traps, quantum entanglement, Quantum mechanics, Satyendra Nath Bose, Wolfgang Ketterle
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