## λ=h/p is Universal?

**Authors:** Z.Y. Wang

de Broglie formula to photons in an unbounded space is E=hν and λ=h/p. According to
electrodynamics, nevertheless,we prove the ratio E/p in a waveguide is greater than the product νλ
which implies E=hν and p=h/λ cannot be tenable at the same time. Then the Casimir effect is applied
to confirm E=hν and p<h/λ. It is helpful to study quantum tunnelling and superluminality[1]~[2],
Cavity-QED, origin of mass, etc. The microwave experiment to test is also presented.

**Comments:** 6 pages.

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### Submission history

[v1] 11 Dec 2009

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