Abstract
The dispersion relation ω2=β2c2−τ2c2 of surface electromagnetic waves is corresponding to that E2=p2c2−m02c4 of a tachyon where the coefficient of proportionality is the squared Planck constant ℏ2. Then we prove the energy flow velocity of the Goos–Hanchen shift in vacuum is cnsinθi>c as well according to electrodynamics. These two different ways lead to a same conclusion that energy transport in the Goos–Hanchen effect of total reflection is faster than light.
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