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Quantum Zeno and anti-Zeno effect on a two-qubit gate by dynamical decoupling

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Abstract

Controlling the dynamics of entanglement and preventing its disappearance are central requisites for any implementation of quantum information processing. Many solid state qubits are affected by non-Markovian noise, often with 1/f spectrum. Leading order dephasing effects are captured by treating noise in the quasistatic approximation. In this article we investigate dynamical decoupling of a two-qubit gate studying the crossover from Zeno to anti-Zeno entanglement dynamics obtained by varying the sequence parameters.

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Authors and Affiliations

  1. Dipartimento di Fisica e Astronomia, Universitá di Catania, Via S. Sofia 64, 95123, Catania, Italy

    A. D’Arrigo, G. Falci & E. Paladino

  2. CNR-IMM Catania Universitá, Via Santa Sofia 64, 95123, Catania, Italy

    G. Falci & E. Paladino

  3. Istituto Nazionale di Fisica Nucleare, Via Santa Sofia 64, 95123, Catania, Italy

    G. Falci & E. Paladino

Authors
  1. A. D’Arrigo
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  2. G. Falci
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  3. E. Paladino
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Correspondence to E. Paladino.

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D’Arrigo, A., Falci, G. & Paladino, E. Quantum Zeno and anti-Zeno effect on a two-qubit gate by dynamical decoupling. Eur. Phys. J. Spec. Top. 227, 2189–2194 (2019). https://doi.org/10.1140/epjst/e2018-800081-0

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  • DOI: https://doi.org/10.1140/epjst/e2018-800081-0

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