The interest to the study of localised states in atomic physics is, on the one hand, evoked by the fact, that in the numerous cases their analysis can be carried out analytically. Such method belongs to not much approaches, which allow investigating the system with nonfactorised variables without the use of perturbation theory or cumbersome numerical methods. On the other hand, the aforementioned states often…
Researchers have created a material that acts as a magnetic diode, transferring magnetism from one object to another but not the other way around. An electric current flowing through a coil of copper wire induces a magnetic field in the coil. This magnetic field can then transfer to a nearby magnetic object, such as a second coil of wire. The laws of electromagnetism, and experimental…
A standard two-dimensional (2D) XY model is well known to show a topological Berezinskii-Kosterlitz-Thouless (BKT) phase transition with the quasi-long-range-order (QLRO) BKT phase characterized by an algebraically decaying correlation function. It will be shown by spin-wave theory and Monte Carlo simulations that including higher-order terms can lead to dramatic changes in its critical behavior, including phase transition order or universality class and even the phase…
Vážená pani / Vážený pán, dovoľujeme si Vás pozvať na Národnú konferenciu Veda a technika na Slovensku a v medzinárodnom výskumnom a vzdelávacom priestore Smerovanie ku kvalite a vedomostiam ktorá sa bude konať dňa 8. novembra 2018 v Incheba Expo Bratislava, Hala B0, Bratislava. Konferencia je organizovaná Ministerstvom školstva, vedy, výskumu a športu SR a je jedným z kľúčových podujatí realizovaných v rámci Týždňa vedy a techniky na Slovensku 2018.…