From behaviours on dating websites to organ donation systems and organization of work of machinery in a factory - problems, for which science can not find efficient algorithms can be encountered in almost every area of life. Computers would need long years for accurate calculations. But scientists do not give up in their search for the best formulas to simplify the world.
Polish-Italian research group has shown that in a quantum fluid of light it is possible to obtain a long Josephson junction (LJJ): a special, dynamic state of the quantum fluid. These studies are also an important step towards the application of fluids of light in practice.
Quantum computer will allow to instantly find the information you need in huge amounts of data and enable complex simulations. Scientists from around the world are working on such a device. In a project led by Prof. Marka Kuś, Polish physicists and IT specialists optimise the calculations performed by qubits, the basic units of the quantum computer.
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.