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Haynes Kwon
Gold Member
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In Bransden textbook, it is stated that the probability current density is constant since we are dealing with 1-d stationary states. It gives probability flux outside the finite potential barrier which I verified to be constant with respect to x, but it doesn't provide the probability current density inside the barrier. I tried to find the flux but I couldn't figure it out yet. How do you find the probability flux inside the barrier?