An optomechanical platform for quantum hypothesis testing for collapse models

Marta Maria Marchese*, Alessio Belenchia, Stefano Pirandola*, Mauro Paternostro

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)
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Quantum hypothesis testing has shown the advantages that quantum resources can offer in the discrimination of competing hypothesis. Here, we apply this framework to optomechanical systems and fundamental physics questions. In particular, we focus on an optomechanical system composed of two cavities employed to perform quantum channel discrimination. We show that input squeezed optical noise, and feasible measurement schemes on the output cavity modes, allow to obtain an advantage with respect to any comparable classical schemes. We apply these results to the discrimination of models of spontaneous collapse of the wavefunction, highlighting the possibilities offered by this scheme for fundamental physics searches.
Original languageEnglish
Article number043022
Number of pages14
JournalNew Journal of Physics
Issue number4
Publication statusPublished - 08 Apr 2021


  • Paper
  • quantum hypothesis testing
  • quantum optomechanics
  • collapse models


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