Coherence protection by the quantum Zeno effect and non-holonomic control in a Rydberg Rubidium isotope

Details Coherence protection by the quantum Zeno effect and non-holonomic control in a Rydberg Rubidium isotope Coherence protection by the quantum Zeno effect and non-holonomic control in a Rydberg Rubidium isotope

2004-03-30

arxiv.org/abs/quant-ph/0403227v2

Phys. Rev. A 71, 052311 (2005)

Physics

Quantum Physics

17 pages, 6 figures

Scientific paper

10.1103/PhysRevA.71.052311

The protection of the coherence of open quantum systems against the influence of their environment is a very topical issue. A scheme is proposed here which protects a general quantum system from the action of a set of arbitrary uncontrolled unitary evolutions. This method draws its inspiration from ideas of standard error-correction (ancilla adding, coding and decoding) and the Quantum Zeno Effect. A pedagogical demonstration of our method on a simple atomic system, namely a Rubidium isotope, is proposed.

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