Путем обобщения на комплексную область уравнений Максвелла в среде получены уравнения, описывающие электромагнитные поля с положительной и отрицательной плотностями энергии, обычные и «мнимые» электрические заряды и взаимодействие последних между собой.
The Maxwell equations for electromagnetic fields generated by so-called imaginary charges are obtained. In our approach, imaginary charges also generate ordinary electromagnetic fields, meanwhile ordinary charges generate negative electromagnetic fields as well. So, our equations describe a system of interacting ordinary and imaginary charges. Two imaginary charges of the same sign are attracted to each other and the interaction of two imaginary charges of the opposite signs is repulsive. As a consequence, negative fields have a negative energy density.