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Decoherence, pointer engineering and quantum state protection

A. R. R. Carvalho·P. Milman·R. L. de Matos Filho·L. Davidovich
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Abstract

We present a proposal for protecting states against decoherence, based on the engineering of pointer states. We apply this procedure to the vibrational motion of a trapped ion, and show how to protect qubits, squeezed states, approximate phase eigenstates and superpositions of coherent states.

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A. R. R. Carvalho, P. Milman, R. L. de Matos Filho, L. Davidovich. 2000-09-06. Decoherence, pointer engineering and quantum state protection. https://arxiv.org/abs/quant-ph/0009024

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