Temporal limitations and digital data processing in continuous variable measurements of non-Gaussian states
Abstract
Non-Gaussian quantum states and operations are essential tools for multiple quantum information protocols exploiting light as information career. In this context, a key role is played by schemes operating with continuous wave light, in which non-Gaussian states are obtained by photon subtraction/addition and eventually reconstructed by quantum state tomography. In these configurations, the temporal resolution of the homodyne detection and the digital data processing critically affect our ability to faithfully reconstruct the produced non-Gaussian states. In this work, we apply digital data processing to experimental data to study how the temporal performances of the detection chain affect the acquisition and treatment of tomographic data. This allows understanding how these features impact the quality of quantum states observed by non-ideal detection chains. By doing so, we discuss the actual constraints on the acquisition and reconstruction of non-Gaussian states by taking into account the limitations of realistic experimental resources.
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BibTeX
@article{petitjean2026temporal,
title = {{Temporal limitations and digital data processing in continuous variable measurements of non-Gaussian states}},
author = {Antoine Petitjean and Anthony Martin and Mohamed Melalkia and Tecla Gabbrielli and Léandre Brunel and Alessandro Zavatta and Sébastien Tanzilli and Jean Etesse and Virginia D’auria},
journal = {Optics Express},
year = {2026},
month = jun,
doi = {10.1364/oe.588523},
eprint = {2603.09698},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05777834v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Temporal limitations and digital data processing in continuous variable measurements of non-Gaussian states
AU - Antoine Petitjean
AU - Anthony Martin
AU - Mohamed Melalkia
AU - Tecla Gabbrielli
AU - Léandre Brunel
AU - Alessandro Zavatta
AU - Sébastien Tanzilli
AU - Jean Etesse
AU - Virginia D’auria
PY - 2026
DA - 2026/06/15
JO - Optics Express
DO - 10.1364/oe.588523
UR - https://hal.science/hal-05777834v1
AB - Non-Gaussian quantum states and operations are essential tools for multiple quantum information protocols exploiting light as information career. In this context, a key role is played by schemes operating with continuous wave light, in which non-Gaussian states are obtained by photon subtraction/addition and eventually reconstructed by quantum state tomography. In these configurations, the temporal resolution of the homodyne detection and the digital data processing critically affect our ability to faithfully reconstruct the produced non-Gaussian states. In this work, we apply digital data processing to experimental data to study how the temporal performances of the detection chain affect the acquisition and treatment of tomographic data. This allows understanding how these features impact the quality of quantum states observed by non-ideal detection chains. By doing so, we discuss the actual constraints on the acquisition and reconstruction of non-Gaussian states by taking into account the limitations of realistic experimental resources.
SN - 1094-4087
ER -