Klein-Gordon equation
= Klein-Gordon equation
{c}
{wiki=Klein–Gordon_equation}
The one-dimensional Klein-Gordon equation
$$
\phi_{tt}-c^2\phi_{xx}+A^2c^2\phi=0
$$
has positive-frequency dispersion relation $\omega(k)=c\sqrt{k^2+A^2}$.
= Klein-Gordon equation
{c}
{wiki=Klein–Gordon_equation}
The one-dimensional Klein-Gordon equation
$$
\phi_{tt}-c^2\phi_{xx}+A^2c^2\phi=0
$$
has positive-frequency dispersion relation $\omega(k)=c\sqrt{k^2+A^2}$.