• Open Access

Engineered noisy environment for studying decoherence

Ai Iwakura, Yuichiro Matsuzaki, and Yasushi Kondo
Phys. Rev. A 96, 032303 – Published 1 September 2017

Abstract

The largest obstacle to perform quantum information processing is decoherence of a system. In order to overcome this, various techniques, such as dynamical decoupling and quantum Zeno effects, have been proposed and demonstrated. Here, we present an NMR model with which various decoherence suppression techniques can experimentally be evaluated. By changing the conditions in the sample preparation, we can engineer an environment to interact the system that contains the information. Moreover, we can efficiently describe the dynamics by the operator-sum representation due to the simplicity of our model. As concrete examples, we have investigated the performance of dynamical decoupling with several molecules. Our model provides a useful test bench to understand the mechanism of decoherence induced by a noisy environment and to examine various ideas of decoherence suppression techniques.

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  • Received 6 November 2016

DOI:https://doi.org/10.1103/PhysRevA.96.032303

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

©2017 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Ai Iwakura1, Yuichiro Matsuzaki2, and Yasushi Kondo1,3,*

  • 1Interdisciplinary Graduate School of Science and Engineering, Kindai University, Higashi-Osaka 577-8502, Japan
  • 2NTT Basic Research Laboratories, NTT Corporation, Kanagawa 243-0198, Japan
  • 3Department of Physics, Kindai University, Higashi-Osaka 577-8502, Japan

  • *ykondo@kindai.ac.jp

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Vol. 96, Iss. 3 — September 2017

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