Effect of system level structure and spectral distribution of the environment on the decoherence rate

Details Effect of system level structure and spectral distribution of the environment on the decoherence rate Effect of system level structure and spectral distribution of the environment on the decoherence rate

2007-01-14

arxiv.org/abs/quant-ph/0701086v2

Phys. Rev. A 75, 042314 (2007)

Physics

Quantum Physics

Generalizations are added. Comments are welcome

Scientific paper

10.1103/PhysRevA.75.042314

Minimizing the effect of decoherence on a quantum register must be a central part of any strategy to realize scalable quantum information processing. Apart from the strength of the coupling to the environment, the decoherence rate is determined by the the system level structure and by the spectral composition of the noise trace that the environment generates. Here, we discuss a relatively simple model that allows us to study these different effects quantitatively in detail. We evaluate the effect that the perturbation has on an NMR system while it performs a Grover search algorithm.

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