‘Motional narrowing’ refers to the striking phenomenon where the resonance line of a system coupled to a reservoir becomes narrower on increasing the reservoir fluctuation. A textbook example is found ...

Atoms in the optical lattice, trapped at a distance of 0.5 micron, are excited to the Rydberg state by the ultrafast excitation technique. Interaction between close Rydberg atoms results in the ...

Caught in a trap: a levitated nanoparticle has been cooled to its quantum ground state. (Courtesy: Lorenzo Magrini and Yuriy Coroli/University of Vienna) A glass sphere about 150 nm in diameter has ...