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Limits to coherent scattering and photon coalescence from solid-state quantum emitters

Jake Iles-Smith, Dara P. S. McCutcheon, Jesper Mørk, and Ahsan Nazir
Phys. Rev. B 95, 201305(R) – Published 25 May 2017
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Abstract

The desire to produce high-quality single photons for applications in quantum information science has lead to renewed interest in exploring solid-state emitters in the weak excitation regime. Under these conditions it is expected that photons are coherently scattered, and so benefit from a substantial suppression of detrimental interactions between the source and its surrounding environment. Nevertheless, we demonstrate here that this reasoning is incomplete, as phonon interactions continue to play a crucial role in determining solid-state emission characteristics even for very weak excitation. We find that the sideband resulting from non-Markovian relaxation of the phonon environment is excitation strength independent. It thus leads to an intrinsic limit to the fraction of coherently scattered light and to the visibility of two-photon coalescence at weak driving, both of which are absent for atomic systems or within simpler Markovian treatments.

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  • Received 24 June 2016
  • Revised 28 April 2017

DOI:https://doi.org/10.1103/PhysRevB.95.201305

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalCondensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology

Authors & Affiliations

Jake Iles-Smith1,2,*, Dara P. S. McCutcheon1,3, Jesper Mørk1, and Ahsan Nazir2,†

  • 1Department of Photonics Engineering, DTU Fotonik, Ørsteds Plads, 2800 Kongens Lyngby, Denmark
  • 2Photon Science Institute & School of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
  • 3Quantum Engineering Technology Labs, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, University of Bristol, BS8 1FD, United Kingdom

  • *jakeilessmith@gmail.com
  • ahsan.nazir@manchester.ac.uk

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Issue

Vol. 95, Iss. 20 — 15 May 2017

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