Метод точной диагонализации с учетом SU (2) и точечной симметрий для двумерной изотропной модели Гейзенберга
Диссертация
Обычно для теоретического изучения свойств низкоразмерных спиновых систем применяются модельные гамильтонианы, прежде всего, изотропный гамильтониан Гейзенберга. Поскольку аналитическое изучение свойств таких модельных гамильтонианов очень затруднено, основное развитие в данной области получают полуаналитические и численные методы, в первую очередь, методы точной диа-гонализации, QMC и DMRG… Читать ещё >
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