It's not every day that an experiment whistles at you. Two UC Berkeley physicists got just that treatment as they cooled helium-4 down to two degrees above absolute zero and tried pushing the ...

Hear the synchronized vibrations from a chorus of more than 4,000 nano-whistles, created when physicists pushed superfluid helium-4 though an array of nanometer-sized holes.

Superfluid helium-4 has been well studied as a candidate scintillation detector for neutrinos and dark matter. When charged particles of high kinetic energy impinge into superfluid helium-4, helium ...

Silicon nanoparticles are attracted to vortices in superfluid helium Date: May 4, 2022 Source: Osaka University Summary: Researchers use silicon nanoparticles to help visualize the coalescence of ...

Gravitational waves from nearby pulsars could be detected using just a few kilograms of superfluid helium-4, according to physicists in the US. Their detector, which is yet to be built, would measure ...

A new detector sensitive to low-mass dark matter particles too light for current experiments to see has been proposed by physicists in the US. Built around a bath of superfluid helium-4, the device ...

To demonstrate the law in a superfluid, Herdman and colleagues created a computer simulation of helium. The isotope they studied, helium-4, is the same stuff that keeps birthday balloons aloft ...

Future Nobel laureate Lev Landau came along in 1941, predicting that superfluid helium-4 should contain an exotic, particle-like excitation called a roton. But scientists, including Landau, Nobel ...

[4] Numerical simulation of thermal counterflow in superfluid helium: Investigating the effect of rotation and heat flux on the surface of the cylinder. Computer Physics Communications (2025).

Superfluid Helium-4 Whistles Just The Right Tune Date: January 30, 2005 Source: University Of California, Berkeley Summary: University of California, Berkeley, physicists can now tune in to and ...