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arXiv 2008.02062gr-qc
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圆柱对称时空中的旋量

Spinors in cylindrically symmetric space-time

Bijan Saha

摘要:

研究了静态柱对称时空中非线性旋量场的行为。我们发现,在这种情况下的旋量场的能量动量张量(EMT)具有非平凡的非对角分量。EMT的非对角分量的存在对时空几何或旋量场的分量或两者都施加了三向限制。在Bianchi I型宇宙学模型中,当非线性旋量场被用作引力场的源时,宇宙学中也出现了类似的情况。

英文摘要:

We studied the behavior of nonlinear spinor field within the scope of a static cylindrically symmetric space-time. It is found that the energy-momentum tensor (EMT) of the spinor field in this case possesses nontrivial non-diagonal components. The presence of non-diagonal components of the EMT imposes three-way restrictions wither on the space-time geometry or on the components of the spinor field or on both. It should be noted that analogical situation occurs in cosmology when nonlinear spinor field is exploited as a source of gravitational field given by Bianchi type-I cosmological model.

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