I have heard that an infinitely strong absorbing potential must reflect all incoming particles. I am sure I have heard this in the context of single-particle quantum mechanics but I cannot find a reliable source explaining this. Where can I find a reliable source explaining, or preferably deriving this?

  • $\begingroup$ I would guess that's just the statement that the tunneling probability goes to zero. $\endgroup$ – knzhou Mar 30 '18 at 8:56
  • $\begingroup$ if possible, would you please provide me a textbook source of this statement? $\endgroup$ – zxontt Mar 31 '18 at 9:30

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