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arXiv 1406.6155hep-thhep-ph
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费米标量场

Fermionic scalar field

Yoshiharu Kawamura

摘要:

通过复标量场的量子化,我们重新考察了自旋和统计之间的联系,使用的公式具有这样的性质:变量的正则动量的厄米共轭就是变量的厄米共轭的正则动量.从一个普通的拉格朗日密度出发,在场上施加反对易关系,我们发现困难不是来自于能量的不确定性(或无界性)和因果关系的崩溃,而是具有负范数的状态的出现。通过引入一个普通的标量场来形成一个费米子对称性的二重态,尽管系统变空而只留下真空态,但它可以被克服。这些特征也适用于旋量场施加对易关系的系统。

英文摘要:

We reexamine the connection between spin and statistics through the quantization of a complex scalar field, using the formulation with the property that the hermitian conjugate of canonical momentum for a variable is just the canonical momentum for the hermitian conjugate of the variable. Starting from an ordinary Lagrangian density and imposing the anti-commutation relations on the field, we find that the difficulty stems from not the ill-definiteness (or unboundedness) of the energy and the breakdown of the causality but the appearance of states with negative norms. It is overcome by introducing an ordinary scalar field to form a doublet of fermionic symmetries, although the system becomes empty leaving the vacuum state alone. These features also hold for the system with a spinor field imposing the commutation relations on.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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