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restrictions on measurement related to the uncertainty principal. Two concrete examples and some general results are given. The uncertainty principle imposes restrictions on the capacity of certain types of communication channels. This paper will show that in compensation for this "quantum noise", quantum mechanics allows us novel forms of coding without(More)
We present a two-party protocol for " quantum gambling, " a new task closely related to coin tossing. The protocol allows two remote parties to play a gambling game such that in a certain limit it becomes a fair game. No unconditionally secure classical method is known to accomplish this task. Quantum cryptography is a field which combines quantum theory(More)
This work surveys the recent results in the theory of cryptography in a quantum computing model. Under the assumption that a quantum computer is built, we consider such notions as encryption and authentication of quantum data, and compare them with their classical counterparts. Many surprizes are unraveled. Once again, these results show how strikingly(More)
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