Consistent quantization of massless fields of any spin and the generalized Maxwell's equations

被引:8
|
作者
Gersten, Alexander [1 ]
Moalem, Amnon [1 ]
机构
[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
关键词
wave equations; massless particles; any spin; generalized Maxwell's equations; WAVE-EQUATIONS;
D O I
10.1088/1742-6596/615/1/012011
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
A simplified formalism of first quantized massless fields of any spin is presented. The angular momentum basis for particles of zero mass and finite spin s of the D-(s-1/2,D-1/2) representation of the Lorentz group is used to describe the wavefunctions. The advantage of the formalism is that by equating to zero the s - 1 components of the wavefunctions, the 2s - 1 subsidiary conditions (needed to eliminate the non-forward and non-backward helicities) are automatically satisfied. Probability currents and Lagrangians are derived allowing a first quantized formalism. A simple procedure is derived for connecting the wavefunctions with potentials and gauge conditions. The spin 1 case is of particular interest and is described with the D (1/2,1/2) vector representation of the well known self-dual representation of the Maxwell's equations. This representation allows us to generalize Maxwell's equations by adding the E-0 and B-0 components to the electric and magnetic four-vectors. Restrictions on their existence are discussed.
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页数:14
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