Hidden and detectable squeezing from microresonators

Year: 2023

Authors: Gouzien E., Labonty L., Etesse J., Zavatta A., Tanzilli S., D’Auria V., Patera G.

Autors Affiliation: Univ Paris Saclay, Inst Phys Theor, CNRS, CEA, F-91191 Gif Sur Yvette, France; Univ Cote dazur, Inst Phys Nice, CNRS, Parc Valrose, F-06108 Nice 2, France; CNR, Ist Nazl Ott, Largo Enrico Fermi 6, I-50125 Florence, Italy; Univ Firenze, LENS, I-50019 Florence, Italy; Univ Firenze, Dept Phys, I-50019 Florence, Italy; Inst Univ France IUF, Paris, France; Univ Lille, CNRS, UMR 8523, Phys Lasers Atomes & Mol, F-59000 Lille, France.

Abstract: In the context of quantum integrated photonics, this work investigates the quantum properties of multimode light generated by silicon and silicon nitride microresonators pumped in pulsed regime. The developed theoretical model provides a comprehensive description of the generated quantum states. Remarkably, it shows that a full measurement of states carrying optimal squeezing levels is not accessible to standard homodyne detection, thus leaving hidden part of generated quantum features. By unveiling and discussing this behavior and possible strategies to amend it, this work proves itself essential to future quantum applications exploiting microresonators as sources of multimode states.

Journal/Review: PHYSICAL REVIEW RESEARCH

Volume: 5 (2)      Pages from: 23178-1  to: 23178-11

More Information: We acknowledge fruitful discussions about analytic de- compositions with Alessandro Pugliese and about spectral covariance matrix with Carlos Navarrete-Benlloch. This work has been conducted within the framework of the project SPHIFA (ANR-20-CE47-0012) . V.D’A. acknowledges finan- cial support from the Institut Universitaire de France (IUF) .
KeyWords: Photons
DOI: 10.1103/PhysRevResearch.5.023178

Citations: 2
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