Tag Archives: Wolfgang Ketterle
Using 10,000 atoms and 1 to probe the Bohr-Einstein debate
The double-slit experiment has often been described as the most beautiful demonstration in physics. In one striking image, it shows the strange dual character of matter and light. When particles such as electrons or photons are sent through two narrow … Continue reading
Posted in Analysis, Scicomm, Science
Tagged Albert Einstein, Bohr-Einstein debate, complementarity, Debye-Waller factor, double-slit experiment, hidden variables, lasers, Niels Bohr, optical lattice, optical tweezer, Pan Jianwei, quantum entanglement, Quantum mechanics, rubidium atoms, scattered light, uncertainty principle, wavepacket, Wolfgang Ketterle
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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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Where is the coolest lab in the universe?
The Large Hadron Collider (LHC) performs an impressive feat every time it accelerates billions of protons to nearly the speed of light – and not in terms of the energy alone. For example, you release more energy when you clap … Continue reading
Posted in Scicomm
Tagged blue hypergiant, Boomerang Nebula, Bose-Einstein condensate, cosmic microwave background, energy density, Eta Carinae, gas outflow, heat, International Space Station, kinetic energy, Large Hadron Collider, Nature News, red giant, temperature, thermal equilibrium, thermodynamics, vacuum, Vladivostok, white dwarf, 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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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
Posted in Uncategorized
Tagged Bose-Einstein condensate, laser cooling, magnetic traps, quantum entanglement, Quantum mechanics, Satyendra Nath Bose, Wolfgang Ketterle
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