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arXiv · quant-ph/0112094

Cloning of symmetric d-level photonic states in physical systems

Heng Fan·Gregor Weihs·Keiji Matsumoto·Hiroshi Imai
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Abstract

Optimal procedures play an important role in quantum information. It turns out that some naturally occurring processes like emission of light from an atom can realize optimal transformations. Here we study how arbitrary symmetric states of a number of d-level systems can be cloned using a multilevel atomic system. It is shown that optimality is always ensured even though the output number of systems is probabilistic.

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Heng Fan, Gregor Weihs, Keiji Matsumoto, Hiroshi Imai. 2002-05-13. Cloning of symmetric d-level photonic states in physical systems. https://doi.org/10.1103/physreva.66.024307

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