Quantum state engineering by nondeterministic noiseless linear amplification

Hamza Adnane, Matteo Bina, Francesco Albarelli, Abdelhakim Gharbi, and Matteo G. A. Paris
Phys. Rev. A 99, 063823 – Published 18 June 2019

Abstract

We address quantum state engineering of single- and two-mode states by means of nondeterministic noiseless linear amplifiers (NLAs) acting on Gaussian states. In particular, we consider the optimal implementation of a NLA proposed by Pandey et al. [Phys. Rev. A 88, 033852 (2013)] and we show that it provides an effective scheme to generate highly non-Gaussian and nonclassical states, when used outside the regime of high-fidelity amplification. Additionally, we show that in this regime also the amplification of a two-mode squeezed vacuum state (twin-beam) highly increases entanglement.

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  • Received 31 January 2019
  • Revised 4 April 2019

DOI:https://doi.org/10.1103/PhysRevA.99.063823

©2019 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Hamza Adnane1, Matteo Bina2, Francesco Albarelli3, Abdelhakim Gharbi1, and Matteo G. A. Paris2

  • 1Laboratoire de Physique Théorique, Faculté des Sciences Exactes, Université de Bejaia, 06000 Bejaia, Algeria
  • 2Quantum Technology Lab, Dipartimento di Fisica, Università degli Studi di Milano, I-20133 Milano, Italy
  • 3Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom

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Issue

Vol. 99, Iss. 6 — June 2019

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