Stress-energy Tensor

Tags: #physics #stress-energy tensor

Equation

$$T_{\mu v}=(\varrho c^{2}+p)u_{p}u_{v}+pg_{\mu v}+\frac{1}{c^{2}}(F^{\mu}_{\alpha}F^{\alpha v} + \frac{1}{4}g^{\mu v}F^{\alpha\beta}F_{\alpha\beta}) \\ \triangledown_{v} T_{\mu v}=0 \\ F_{\alpha\beta}=\frac{\partial{A_{\beta}}}{\partial{x^{\alpha}}} - \frac{\partial{A_{\alpha}}}{\partial{x^{\beta}}} \\ \frac{d p_{\alpha}}{d \tau}=qF_{\alpha\beta}u^{\beta}$$

Latex Code

                                 T_{\mu v}=(\varrho c^{2}+p)u_{p}u_{v}+pg_{\mu v}+\frac{1}{c^{2}}(F^{\mu}_{\alpha}F^{\alpha v} + \frac{1}{4}g^{\mu v}F^{\alpha\beta}F_{\alpha\beta}) \\
\triangledown_{v} T_{\mu v}=0 \\
F_{\alpha\beta}=\frac{\partial{A_{\beta}}}{\partial{x^{\alpha}}} - \frac{\partial{A_{\alpha}}}{\partial{x^{\beta}}} \\
\frac{d p_{\alpha}}{d \tau}=qF_{\alpha\beta}u^{\beta}
                            

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Introduction


Latex code for the stress-energy tensor and the field tensor. I will briefly introduce the notations in this formulation.

  • The stress-energy tensor is given by:
  • The conservation laws can than be written as: . And the electromagnetic field tensor is given by .
  • The equations of motion for a charged particle in an EM field become with the field tensor:

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