Researchers manipulated Kelvin waves in superfluids.

 

"Scientists catch spirals of Kelvin waves in superfluid helium for the first timeAn illustration depicting helical waves in a vortex." (InterstingEngineering, Scientists catch spirals of Kelvin waves in superfluid helium for the first time)

"A team of Japanese researchers has discovered a method to control Kelvin wave excitation in superfluid helium-4. This breakthrough can refine our understanding of how energy moves in quantum fluids, improving quantum sensors and making quantum devices more efficient. "(InterstingEngineering, Scientists catch spirals of Kelvin waves in superfluid helium for the first time)

Researchers manipulated Kelvin waves in superfluids.  That might seem something meaningless but the ability to manipulate structures in liquid helium is one of the most interesting things in the history of information technology. The superfluid manipulation makes it possible to create special communication systems that benefit the whirls or string structures in ultra-cold liquids. Those communication systems bring the quantum computers closer to our desks.

As you see from the image above this text the system creates the whirl there are wheel-shaped structures. Those structures are like towers. The information can travel between two wheels between two whirl towers. That can be the new tool for quantum sensors and other kinds of systems. When the outside energy hits the ultra-cold helium. It pushes those atoms. That changes the shape of those whirls. That ability to manipulate these structures makes it possible to create the quantum acoustic and electromagnetic systems that were not possible before.

The liquid helium is not only possible superfluid. The ultra-cold atoms can be used in scanning atomic microscopes. But ultra-cold atoms, or so-called quantum fog can also be used in the system called atomic resonance detector. The atomic resonance detector is the system where ultra-cold atoms are in a chamber. The idea is simple. When radiation stresses some chemical compounds and there are similar atoms in the chamber the atom that is in the sample sends reflection radiation to that chamber.

The atomic resonance microscope is not as sharp as the scanning tunneling microscope. However, it can uncover if there are certain atoms in a sample. The chamber includes ultra-cold low-pressure gas. The system can also make resonance into certain points of the samples if the chamber sends radiation. In that case, radiation energy is sent to the resonance chamber. That thing cuts the compounds to a precise certain point.

If there are similar atoms in the chamber. That reflection causes resonation. That means if there are oxygen atoms in the chamber and if the sample includes oxygen those oxygen atoms cause resonance in the oxygen atoms in that chamber.

Ultra-cold liquid manipulation makes also it possible to create sonar systems that can research the bottoms of the hydrocarbon and nitrogen oceans at ultra-cold objects like Triton and Pluto. The ability to manipulate ultra-cold liquids makes one of the most interesting communication systems possible.

In SciFi movies characters talk about "sub-space communication". In the world of communication theories that means the use of weak wave fields with unique frequencies to communicate with long-distance probes. The idea is that if the wave field is very weak, but its wavelength is unique it will not resonate with other fields. 

https://interestingengineering.com/science/scientists-catch-control-kelvin-waves-first-time