Quantum Cryptography or Quantum key distribution (QKD) is a technique that allows the secure distribution of a bit string, used as key in cryptographic protocols. When it was note...
We consider three capacity definitions for composite channels with channel side information at the receiver. A composite channel consists of a collection of different channels with...
We define a language CQP (Communicating Quantum Processes) for modelling systems which combine quantum and classical communication and computation. CQP combines the communication ...
—In 1948 Shannon developed fundamental limits on the efficiency of communication over noisy channels. The coding theorem asserts that there are block codes with code rates arbit...
We investigate coin-flipping protocols for multiple parties in a quantum broadcast setting: • We propose and motivate a definition for quantum broadcast. Our model of quantum ...
Andris Ambainis, Harry Buhrman, Yevgeniy Dodis, He...