Christopher A. Fuchs, 1 Nicolas Gisin, Robert B. Griffiths, Chi-Sheng Niu, 3 and Asher Peres 4,* Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, Californiaâ€¦ (More)

We consider the Bennett-Brassard cryptographic scheme, which uses two conjugate quantum bases. An eavesdropper who attempts to obtain information on qubits sent in one of the bases causes aâ€¦ (More)

We study the mapping which occurs when a single qubit in an arbitrary state interacts with another qubit in a given, fixed state resulting in some unitary transformation on the two qubit systemâ€¦ (More)

We consider the Bennett-Brassard cryptographic scheme, which uses two conjugate quantum bases. An eavesdropper who attempts to obtain information on qubits sent in one of the bases causes aâ€¦ (More)

It is shown that the optimum strategy of the eavesdropper, as described in the preceding paper, can be expressed in terms of a quantum circuit in a way which makes it obvious why certain parametersâ€¦ (More)

The bioinorganic complexes of europium with N-acetyl-DL-alanine, N-acetyl-DL-valine, and DL-alanyl-DL-alanine have been synthesized and the MÃ¶ssbauer spectra at room temperature have been measuredâ€¦ (More)