Transmission of a Cartesian frame by a quantum system.
A single quantum system, such as a hydrogen atom, can transmit a Cartesian coordinate frame (three axes). For this it has to be prepared in a superposition of states belonging to different irreducible representations of the rotation group. The algorithm for decoding such a state is presented, and the fidelity of transmission is evaluated.
Peres
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Department of Physics, Technion-Israel Institute of Technology, 32000 Haifa, Israel.
Scudo
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