About momentum-energy vector ,we have :(adsbygoogle = window.adsbygoogle || []).push({});

[itex]\vec{P}[/itex]=([itex]\vec{p}[/itex],i[itex]\frac{E}{c}[/itex])

and four dimentianal wave vector :

[itex]\vec{K}[/itex]=([itex]\vec{k}[/itex],i[itex]\frac{\omega}{c}[/itex])

They also satisfy the ralation :

[itex]\vec{P}[/itex]=[itex]\frac{h}{2\pi}[/itex][itex]\vec{K}[/itex],

because E=[itex]\frac{h}{2\pi}[/itex][itex]\omega[/itex].

It is interesting.

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# Four dimentional vector in special relativity

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