Researchers at Aalto-University created Alice's ring for the first time.

  Researchers at Aalto-University created Alice's ring for the first time. 

Researchers used quantum gas which temperature turned into an extremely low level. And then they pressed those very cold atoms, which temperature is at least near zero kelvin degrees into one point by using magnetic fields. That is called Bose-Einstein condensate. And in that condition, the gas atoms are starting to act like one big atom. In that case, the electrons transfer into the outer shell of that entirety. 

Or otherwise said, electrons start to orbit those atoms as if they are one atom. And that thing helps to form a magnetic monopole. In a magnetic monopole is only a plus or minus pole. When researchers remove an outcoming magnetic field, magnetic repelling pushes those particles out of the form. 

"Artistic illustration of an Alice ring, which researchers have just observed for the first time in nature. Credit: Heikka Valja/Aalto University"(ScitechDaily.com/Down the Quantum Rabbit Hole: “Alice Ring” Discovery Offers Glimpse Into Other-Worldly Realm)

Also, an extremely strong gravity field can keep a magnetic monopole in its form. And that causes a question Are the hypothetical quark stars or black holes magnetic monopoles? 

Monopolar objects require a strong electromagnetic field that pushes them inside and keeps the particles in form. Another thing that can create stable magnetic monopoles is gravity. If the gravity field is strong enough, that thing makes it possible to form a stable magnetic monopole. And that causes an idea about black holes. Are they magnetic monopoles? 

Magnetic monopoles can created by using protons, and electrons. The magnetic fields push those particles into the shape of a ball. Also is possible that neutrons whose poles (like N-pole) are turned radially from the center of the ball to the ball's shell can form magnetic monopoles. In that model, the N-poles or S-poles are making structures that look like thorns. And the neutron ball is covered with N- or S-poles. 

If there is only as an example S-poles that make the neutron ball monopolar. In normal situations, the neutron ball where neutrons are on the same side from in to out the electromagnetic repel force will destroy the structure. But if there are lots of neutrons gravity wins the electromagnetic forces. That thing causes a question: Is a black hole some kind of monopolar object? 

The Alice ring means that a magnetic monopole turns a whirl-like quantum structure. That thing is one of the most interesting things in magnetic monopole research. Alice ring is one thing that can be used to model virtual particles and the Swinger effect. The Alice ring introduces how particles are turning into wave movement. And mirror reaction is, of course, when wave movement turns into particles. 

https://scitechdaily.com/down-the-quantum-rabbit-hole-alice-ring-discovery-offers-glimpse-into-other-worldly-realm/

https://en.wikipedia.org/wiki/Quark_star