



00882nas a2200121   4500008004100000245007000041210006900111260001500180520048400195100002000679700001700699856004400716       2003                        eng d00aCan quantum cryptography imply quantum mechanics? Reply to Smolin0 aCan quantum cryptography imply quantum mechanics Reply to Smolin  c2003/11/113 a  Clifton, Bub, and Halvorson (CBH) have argued that quantum mechanics can be
derived from three cryptographic, or broadly information-theoretic, axioms. But
Smolin disagrees, and he has given a toy theory that he claims is a
counterexample. Here we show that Smolin's toy theory violates an independence
condition for spacelike separated systems that was assumed in the CBH argument.
We then argue that any acceptable physical theory should satisfy this
independence condition.
1 aHalvorson, Hans1 aBub, Jeffrey  uhttp://arxiv.org/abs/quant-ph/0311065v1