869 citations · 10.9k across the 170 of their papers we have counts for
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quant-ph1998★ 141 cited
Optimal state estimation for d-dimensional quantum systems
D. Bruss, C. Macchiavello
We establish a connection between optimal quantum cloning and optimal state estimation for d-dimensional quantum systems. In this way we derive an upper limit on the fidelity of st…
quant-ph1998★ 869 cited
Optimal eavesdropping in quantum cryptography with six states
Dagmar Bruss
A generalization of the quantum cryptographic protocol by Bennett and Brassard is discussed, using three conjugate bases, i.e. six states. By calculating the optimal mutual informa…