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# Quantum mechanics

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1. Show that the plane waves are non-normalisable energy eigenstates for the free particle( i.e. ). What does it mean for it to be a non-normalisable energy eigenstate? In the answer it says that the energy but I'm not sure I understand why this shows it's non-normalisable.
2. (Original post by JBKProductions)
Show that the plane waves are non-normalisable energy eigenstates for the free particle( i.e. ). What does it mean for it to be a non-normalisable energy eigenstate? In the answer it says that the energy but I'm not sure I understand why this shows it's non-normalisable.
broadly speaking, a non normalisable eigenstate is one where, if you integrate the mod square of it's wavefunction over R^3, you get infinity.
3. Thanks.
4. F=Ma
5. (Original post by Jed_)
F=Ma
I think you mean:
6. (Original post by ben-smith)
I think you mean:
no my friend, you are mistaken the equation the you just said is Distance/time= speed. don't worry I am very experience in the field of mathematics so I can provide more assistance if you need it, this will lead to less embarrassing situations on your part.

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