The researchers have rotated a container filled
with superfluid helium - 3 isotopes near absolute zero temperature.
Not exact matches
Two 1D
superfluids in box potentials are used to show the recurrence of coherence in a system
with thousands of particles.
Cold clouds of atoms
with unequal populations of atomic spins can maintain a surprisingly robust
superfluid state, which requires paired spins.
Rather like electrons flowing without electrical resistance, at temperatures close to absolute zero, some atoms turn
superfluid, flowing
with no friction or physical resistance.
On Earth
Superfluids with properties such as climbing up the walls of their containers can be made from chilled atoms.
If gravitational waves — ripples in space time — have a handedness, primordial particles could interact
with them to form a dark matter
superfluid that spreads through the cosmos
In the future, the team plans to build devices
with hundreds of sites
with which they hope to observe exotic phases of light such as
superfluids and insulators.
A drop of
superfluid helium (left,
with its mirror image underneath) won't slide down a cesium surface.
With that magic ingredient, you can begin to make a
superfluid sonic black hole.
In the 1970s, Brinkman worked on
superfluid helium
with Anderson and Douglas Osheroff, both Nobelists but for different discoveries, before deciding to go into management.
If conditions are right, these neutrons ought to be able to pair up to form a
superfluid — a substance
with quantum properties that mean it flows
with zero friction.
But only the normal fraction will rotate
with the cylinder, because of friction between it and the cylinder walls; the
superfluid portion cuts right through the normal fluid and remains still.
The same principle underlies another famous demonstration in which
superfluid rapidly shoots out of an open, heated glass tube packed
with fine powder at the bottom.
But new computer simulations confirm that
superfluid helium follows an unusual rule known from black holes — one
with mysterious significance for physics.
To describe the underlying physics of a
superfluid's turbulence, Adams and his colleagues drew comparisons
with the physics governing black holes.
In simulations of the
superfluid, the entropy of atoms (blue) entangled
with one another (green) increases
with the surface area of the sphere of particles (gray).
Apple went a little hybrid
with use of both buttons and touch for interaction in a
superfluid way.