Year 2021

• Observation of second-order meron polarization textures in optical microcavities

  Publication

  • M. Król
  • H. Sigurdsson
  • K. Rechcińska
  • P. Oliwa
  • K. Tyszka
  • W. Bardyszewski
  • A. Opala
  • M. Matuszewski
  • P. Morawiak
  • R. Mazur... and 6 others

  - Optica - Year 2021

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Year 2020

• Experimental certification of an informationally complete quantum measurement in a device-independent protocol

  Publication

  • M. Smania
  • P. A. Mironowicz (formerly: P. Mironowicz)
  • M. Navareg
  • M. Pawłowski
  • A. Cabello
  • M. Bourennane

  - Optica - Year 2020

  Minimal informationally complete positive operator-valued measures (MIC-POVMs) are special kinds of measurement in quantum theory in which the statistics of their d2-outcomes are enough to reconstruct any d-dimensional quantum state. For this reason, MIC-POVMs are referred to as standard measurements for quantum information.Here, we report an experiment with entangled photon pairs that certifies, for what we believe is the first...

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• Nonreciprocal cavities and the time-bandwidth limit: comment

  Publication

  • K. L. Tsakmakidis
  • Y. You
  • T. Stefański
  • L. Shen

  - Optica - Year 2020

  In their paper in Optica 6, 104 (2019), Mann et al. claim that linear, time-invariant nonreciprocal structures cannot overcome the time-bandwidth limit and do not exhibit an advantage over their reciprocal counterparts, specifically with regard to their time-bandwidth performance. In this Comment, we argue that these conclusions are unfounded. On the basis of both rigorous full-wave simulations and insightful physical justifications,...

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