Magnetni monopoli v spinskem ledu

Predstavljeni so kvazidelci z lastnostmi, podobnimi lastnostim magnetnih monopolov kot hipotetični osnovni delci. Kvazidelci nastanejo kot prve vzbuditve v kristalu spinskega ledu. Najprej so opisane lastnosti hipotetičnega magnetnega monopola. Sledi matematični opis osnovnega stanja sistema spinskega ledu in primerjava z vodnim ledom. Nato so opisane prve vzbuditve, njihova povezava z magnetnimi monopoli in merljive lastnosti, ki izhajajo iz takega opisa.

Magnetic monopoles in spin ice

Quasiparticles with properties reminding that of the hypothetical magnetic monopole are presented. Quasiparticles emerge as the first excitations in a crystal of spin ice. First the properties of the hypothetical magnetic monopole in vacuum are described. A mathematical description of the ground state and its comparison to water ice follows. Finally a description of the first excitation, its connection to the magnetic monopoles and the measurable properties that arise from such description is given