Browse Physics

Compared to classical solids, the quantum solid helium-4 can undergo a giant plastic deformation that is also reversible.

A torus of trapped cold atoms could be used as a rotation sensor.

Glitches in the rotation of pulsars cannot be explained by the conventional model of superfluid neutrons beneath the star’s crust.

Measurements of the heat capacity in two-dimensional helium-$3$ adsorbed on graphite provide further evidence of an unexpected liquid state at temperatures near absolute zero.

Coherent quantum states of different chirality have been formed and identified in the $A$ phase of superfluid helium-$3$, confirming previous theoretical predictions.

The first evidence of a superfluidlike state in solid helium came from 2004 experiments that, with improvements, now find no supersolidity.

What looks like supersolidity in helium could actually be the result of changes in helium’s elasticity, according to theory.

Measurements of drag coefficients in helium at low temperatures can improve understanding of turbulence in both classical and quantum fluids.