- #1
Xyius
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I am following the math of scattering theory in Sakurai, Revised Edition pp.380-381
For a free particle, one can find that the solution is a plane wave that can be written (in position space) as,
[tex]<x|\phi>=\frac{e^{ip \cdot x}}{(2 \pi \hbar)^{3/2}}[/tex]
However, how does one obtain ##<x|p>?## In the book it has..
[tex]<x|p>=\frac{e^{ip \cdot x}}{(2 \pi \hbar)^{3/2}}[/tex]
Which is identical to ##<x|\phi>##. Why are these two expressions the same? I also don't know what ##<x|p>## means physically. Momentum in the position basis?
For a free particle, one can find that the solution is a plane wave that can be written (in position space) as,
[tex]<x|\phi>=\frac{e^{ip \cdot x}}{(2 \pi \hbar)^{3/2}}[/tex]
However, how does one obtain ##<x|p>?## In the book it has..
[tex]<x|p>=\frac{e^{ip \cdot x}}{(2 \pi \hbar)^{3/2}}[/tex]
Which is identical to ##<x|\phi>##. Why are these two expressions the same? I also don't know what ##<x|p>## means physically. Momentum in the position basis?
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