@article {1321,
title = {Can quantum cryptography imply quantum mechanics? Reply to Smolin},
year = {2003},
month = {2003/11/11},
abstract = { 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{\textquoteright}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.
},
url = {http://arxiv.org/abs/quant-ph/0311065v1},
author = {Hans Halvorson and Jeffrey Bub}
}
@article {1328,
title = {Characterizing quantum theory in terms of information-theoretic constraints},
journal = {Foundations of Physics},
volume = {33},
year = {2002},
month = {2003/11/01},
pages = {1561 - 1591},
abstract = { We show that three fundamental information-theoretic constraints--the
impossibility of superluminal information transfer between two physical systems
by performing measurements on one of them, the impossibility of broadcasting
the information contained in an unknown physical state, and the impossibility
of unconditionally secure bit commitment--suffice to entail that the
observables and state space of a physical theory are quantum-mechanical. We
demonstrate the converse derivation in part, and consider the implications of
alternative answers to a remaining open question about nonlocality and bit
commitment.
},
doi = {10.1023/A:1026056716397},
url = {http://arxiv.org/abs/quant-ph/0211089v2},
author = {Rob Clifton and Jeffrey Bub and Hans Halvorson}
}