【摘要】 利用散射振幅对能量、角动量和耦合常数的解析性质,可以把求散射相移,定耦合常数,求束缚态能级、共振能量和Regge 轨迹等问题联系起来,用变分法求近似解。这方法可以推广应用到场论中。更多还原

【Abstract】 A variation method for calculating the scattering phase shift,bindingenergy,resonance energy and Regge trajectory was proposed on the basisof the analytic properties of the scattering amplitude.The method wasextended to field theory in the ladder approximation.更多还原