扩展外场中自旋1/2粒子的超对称动力学
Supersymmetric Dynamics of a Spin-1/2 Particle in an Extended External Field
摘要:
考虑D=5的外场中的电子,通过狄拉克方程的伽利略对称性方法和洛伦兹对称性方法,得到非相对论性极限,进而得到与伽利略对称性有关的超对称性,从量子力学动力学中确定为超对称扇区,得到费米子荷的代数.我们自然地定义为额外的电矢量E,并解释来自第五维的能量。来自第五维的能量,表示这个额外的电矢量E,与外部电场A的第五分量相关联,这使得能量从第五维流向通常的三维空间,当通常空间的某些对称性被打破时,给出空间中的优先方向,即使标准电场和磁场为零。
英文摘要:
We consider a electron in a external field in D=5, through the Dirac equation in the Galilean symmetry approach, and in the Lorentz symmetry approach; from these we perform the nonrelativistic limit, then we procede the supersymmetry of the same that is associated with the Galilean symmetry, we identify as a supersymmetry sector from the quantum-mechanical dynamics, and we got the algebra of fermionic charges. We naturally define as extra electrical vector E, and interpret the terms of energy coming from the fifth dimension. The energy from the fifth dimension, criate this extra electrical vector E, associated with the fifth component of the external electrical field A, this makes the energy flow from the fifth dimension to the usual three-dimensional space, when some symmetries of the usual space are broken, giving a preferential direction in the space, even though the standard electrical and magnetic fields are null.
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