Quantum Transduction with Adaptive Control

Mengzhen Zhang, Chang-Ling Zou, and Liang Jiang
Phys. Rev. Lett. 120, 020502 – Published 9 January 2018
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Abstract

Quantum transducers play a crucial role in hybrid quantum networks. A good quantum transducer can faithfully convert quantum signals from one mode to another with minimum decoherence. Most investigations of quantum transduction are based on the protocol of direct mode conversion. However, the direct protocol requires the matching condition, which in practice is not always feasible. Here we propose an adaptive protocol for quantum transducers, which can convert quantum signals without requiring the matching condition. The adaptive protocol only consists of Gaussian operations, feasible in various physical platforms. Moreover, we show that the adaptive protocol can be robust against imperfections associated with finite squeezing, thermal noise, and homodyne detection, and it can be implemented to realize quantum state transfer between microwave and optical modes.

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  • Received 19 June 2017

DOI:https://doi.org/10.1103/PhysRevLett.120.020502

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Mengzhen Zhang1,2, Chang-Ling Zou1,2,3, and Liang Jiang1,2

  • 1Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut 06520, USA
  • 2Yale Quantum Institute, Yale University, New Haven, Connecticut 06520, USA
  • 3Key Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei, Anhui 230026, China

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Issue

Vol. 120, Iss. 2 — 12 January 2018

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