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Quantum Information Processing

One-step implementation of a robust Fredkin gate based on path engineering

  • 01-08-2020
Published in:
Authors
Chun-Ling Zhang
Wen-Wu Liu
Xiu-Min Lin
Published in
Quantum Information Processing | Issue 8/2020

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Abstract

In this paper, we propose a scheme to generate a Fredkin gate in a single step based on path engineering. The quantum Zeno dynamics is utilized to simplify the Hamiltonian. As a result, an effective Hamiltonian will be obtained to drive the system to evolve into the target state in a short time if reasonable parameters are set. In addition, the results of explicit numerical simulations indicate that the scheme is robust against the instability of experimental parameters and the decoherence arising from atomic spontaneous emission and cavity decay. Most importantly, our scheme is just a single step, which greatly simplifies actual operation.

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previous article Generation of optical-photon-and-magnon entanglement in an optomagnonics-mechanical system
next article Achieving the Heisenberg limit under general Markovian noise using quantum error correction without ancilla
Title
One-step implementation of a robust Fredkin gate based on path engineering
Authors
Chun-Ling Zhang
Wen-Wu Liu
Xiu-Min Lin
Publication date
01-08-2020
Publisher
Springer US
Published in
Quantum Information Processing / Issue 8/2020
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-020-02767-6
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