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ÏÓÀÍÊÀÐÅ-ÈÍÂÀÐÈÀÍÒÍÛÅ ÓÐÀÂÍÅÍÈß ÄÂÈÆÅÍÈß ×ÀÑÒÈÖ ÏÐÎÈÇÂÎËÜÍÎÃÎ ÑÏÈÍÀ

Â. È. Ôóùè÷, A. Ã. Íèêèòèí

Èíñòèòóò ìàòåìàòèêè ÀÍ ÓÑÑÐ, Êèåâ

The three classes of Poincare-invariant equations, which describe a free motion of an arbitrary spin particle, have been obtained and studied in detail. The consistent description of the charged particle behavior in an external electromagnetic field have been obtained in the frame of the equations derived. The transformation properties of the position and of the spin operators have been established.

Ïîëó÷åíû è ïîäðîáíî èññëåäîâàíû òðè êëàññà ïóàíêàðå-èíâàðèàíòíûõ óðàâíåíèé, îïèñûâàþùèõ ñâîáîäíîå äâèæåíèå ÷àñòèöû ïðîèçâîëüíîãî ñïèíà. Íà îñíîâå âûâåäåííûõ óðàâíåíèé ïîëó÷åíî íåïðîòèâîðå÷èâîå îïèñàíèå ïîâåäåíèÿ çàðÿæåííîé ÷àñòèöû âî âíåøíåì ýëåêòðîìàãíèòíîì ïîëå. Óñòàíîâëåíû òðàíñôîðìàöèîííûå ñâîéñòâà îïåðàòîðîâ êîîðäèíàòû è ñïèíà.

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