The resulting exotic atom therefore retained a lifetime of nanoseconds, which is long enough for a laser pulse to excite the nascent exotic atom. Figure 1 | How to make and excite pionic helium.

Neutral helium microscopy and atom optics constitute an innovative imaging paradigm that exploits low-energy, charge-neutral helium atoms to non-destructively investigate surface properties at the ...

A recent experimental measurement has identified a significant discrepancy between theoretical predictions and the observed behavior of the helium-4 nucleus. The work of an international collaboration ...

Helium is the simplest multi-body atom. Its energy levels can be calculated with extremely high precision only relying on a few fundamental physical constants and the quantum electrodynamics (QED ...

Physicists have created the first-ever atomic vortex beam — a swirling tornado of atoms and molecules with mysterious properties that have yet to be understood.

The research, published this week in Science relies on finding the colour of laser light where a helium atom is invisible, and is an independent corroboration of previous methods used to test QED ...

Chemistry Atom-by-atom recordings track what happens after substances dissolve Solvation is the complicated process through which a dissolved substance like salt interacts with a solvent like ...

All the latest science news on helium atom from Phys.org. Find the latest news, advancements, and breakthroughs.

Helium is essential for research, medical equipment, but it's nonrenewable and difficult to recycle The next time you pick up balloons for your big party, remember the helium gas in those balloons ...