Nonclassical Imaging for a quantum search of trapped ions

Details Nonclassical Imaging for a quantum search of trapped ions Nonclassical Imaging for a quantum search of trapped ions

2004-01-22

arxiv.org/abs/quant-ph/0401141v2

Physics

Quantum Physics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevA.70.063816

We discuss a simple search problem which can be pursued with different methods, either on a classical or on a quantum basis. The system is represented by a chain of trapped ions. The ion to be searched is a member of that chain, consists, however, of an isotopic species different to the others. It is shown that the classical imaging may lead as fast to the final result as the quantum imaging. However, for the discussed case the quantum method gives more flexibility and higher precision when the number of ions considered in the chain is increasing. In addition, interferences are observable even when the distances between the ions is smaller than half a wavelength of the incident light.

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