Charged particles in aqueous solutions are always surrounded by a shell of water molecules. However, much is still unknown about the nature of this so-called hydration shell. Using terahertz ...

Cooling atoms to ultracold temperatures of less than one millikelvin and controlling their internal energy states has led to the development of numerous technologies, including optical atomic clocks 1 ...

Over the past decades, researchers have been trying to develop increasingly advanced and powerful quantum computers, which could outperform classical computers on some tasks. To attain this, they have ...

In the chemistry of interstellar clouds, the three-atomic hydrogen ion plays a key role. In these reactions, also simple organic molecules form. Although H3+ is the simplest polyatomic molecular ion, ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences Dispersion of sound has been compared for ethylene and tetradeutero-ethylene. Relaxation times of 0.26 and 0.14 ...

Red light stop: The experiment uses multiple frequencies of light to cool the CaOH atoms to a fraction of a degree above absolute zero. (Courtesy: John Doyle) Physicists in the US have created ...

Three’s company: researchers at Harvard University have trapped individual triatomic molecules. (Courtesy: iStock/Emilija Randjelovic) Individual polyatomic molecules have been trapped in arrays of ...