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Based on the solution to Bargmann-wigner equation for an arbitrary half-integral spin,a direct derivation of the projction operator and propagator for an arbitrary half-intergral spin is presented.The projection operator constructed by Behrends and Fronsdal is confirmed and simplified.The commutation rules and a general expression for the Feynman propagator for a free particle with arbitrary half-integral spin are deduced.Explicit expressions for the propagators for spins 3/2,5/2and 7/2 are provided. 相似文献
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Based on the solution of the Bargmann-Wigner equation for an arbitrary integral spin,a direct derivation of the projection operator and propagator for an arbitrayr integral spin is presented.The explicit form for the spin projection operators constructed by Behrends and Fronsdal is confirmed.The commutation rules and a general expression for the Feynman Propagator for a free particle of arbitrary integral spin are deduced. 相似文献
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借助湮没算符的本征值方程及其本征态的完备性,证明了纠缠态的完备性.在此基础上,利用纠缠态所满足的本征值方程,得到了非对称纠缠态投影算符的积分.
关键词:
完备性
纠缠态
投影算符
积分 相似文献
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根据Davidson和 Clark的定域自旋(Local Spin)理论的计算方程, 将它们改写为简单易行的矩阵代数形式的方程, 并根据这些方程编写了一个计算磁性体系定域自旋的程序. 为了验证程序的正确性, 在相同的计算水平下, 计算了O2和NO的定域自旋结果并把它们和Davidson和Clark的做了比较, 结果证明程序的可行性. 进而针对简单模型磁性化合物HHeH, 计算它的定域自旋结果和磁交换耦合常数J, 探讨它们与体系几何参数之间的关系. 相似文献
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