Summary
A nonlinear system of differential equationsL 1 X=κ|Y|2,L 2 Y=κXY with constant coupling κ is investigated with a view to determine a physical state defined by two independent functionsX, Y. The operatorsL 1,L 2 are linear and of second order. As an example the equations are applied to a model quantum theory of gravitating particles.
Riassunto
Si studia un sistema non lineare di equazioni differenzialiL 1 X=κ|Yκ2,L 2 Y=κXY con accoppiamento costante κ allo scopo di determinare uno stato fisico definito da due funzioni indipendentiX, Y. Gli operatoriL 1,L 2 sono lineari e di second’ordine. Come esempio le equazioni sono applicate a una teoria quantistica modello di particelle gravitazionali.
Резюме
Исследуется нелинейная система дифференцнальных уравненийL 1 X=κ|Y|2,L 2 Y=κXY с константой связи κ. Цель исследования—определение физического состояния, задаваемого двумя независимыми функциямиX, Y. ОператорыL 1,L 2 являются линейными и второго порядка. Полученные уравнения применяются к модельной квантовой теории для частиц, испытывающих гравитационное взаимодействие.
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References
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Part of this work was carried out while visiting the Center for Applied Mathematics and Department of Physics, University of Georgia (U.S.A.).
Physically speaking, such self-consistent theories arise when at least two components of a given system are dynamically dependent. For example, in nuclear physics it would be quite inconsistent to treat the interaction of the nucleon core with the meson cloud in such a way that the nucleon is held fixed at the origin. Instead, the self-consistent method requires that both components (nucleon and mesons), are treated simultaneously so as to include the nucleon recoil caused by the mesons (1): this involves a nonlinear system of differential equations of the type we wish to investigate here.
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Efinger, H.J. On certain nonlinear equations arising in self-consistent theories. Nuov Cim B 59, 314–326 (1980). https://doi.org/10.1007/BF02721317
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DOI: https://doi.org/10.1007/BF02721317