Collisions of lead nuclei take place under extreme physical conditions. Their course can be described using a model which assumes that the transforming, extremely hot matter – the quark-gluon plasma – flows in the form of hundreds of streaks. Until now, the “fire streaks” seemed to be purely theoretical structures. However, the latest analysis of collisions of individual protons reinforces the hypothesis that they represent a real physical phenomenon.
Quantum graphs can be experimentally simulated by classical microwave networks, shows research conducted at the Institute of Physics of the Polish Academy of Sciences. This idea will allow to study quantum systems, difficult to investigate in laboratories or on supercomputers.
In order to build smaller electronic devices, we must be able to study how electric current flows through objects made of a few or several dozen atoms. A team from the Jagiellonian University in collaboration with researchers from Spain, France and Singapore has developed a method to study the transport of electrons in such small objects.
If antimatter is like a mirror image of matter, why is the Universe full of matter, and not antimatter? Scientists in their experiments find only slight differences between matter and antimatter. The biggest differences still elude them. Prof. Mariusz Witek from the Institute of Nuclear Physics PAS talks about this with PAP.
We do not have to look for dark matter here and now, for example in particle detectors. Traces of interaction of dark matter with ordinary matter can survive in millions of years old geological samples. You just need to know how to look for them, researchers including a Polish scientist suggest.
The Polish concept of time crystals will be realized in Australia for the first time in the world. A method of creating such crystals was developed in Kraków by Prof. Krzysztof Sacha. Thanks to particles reflected by atomic mirrors, scientists will study solid state physics from a completely new perspective.