Data for Four-Photon Subtraction from Picosecond Squeezed Vacuum Demonstrating Wigner Negativity without Loss Correction

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Main Authors: Endo, Mamoru, Nomura, Takefumi, Sonoyama, Tatsuki, Takahashi, Kazuma, Takasu, Sachiko, Fukuda, Daiji, Kashiwazaki, Takahiro, Inoue, Asuka, Umeki, Takeshi, Nehra, Rajveer, Marek, Petr, Filip, Radim, Takase, Kan, Asavanant, Warit, Furusawa, Akira
Format: Recurso digital
Published: Zenodo 2026
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author Endo, Mamoru
Nomura, Takefumi
Sonoyama, Tatsuki
Takahashi, Kazuma
Takasu, Sachiko
Fukuda, Daiji
Kashiwazaki, Takahiro
Inoue, Asuka
Umeki, Takeshi
Nehra, Rajveer
Marek, Petr
Filip, Radim
Takase, Kan
Asavanant, Warit
Furusawa, Akira
author_facet Endo, Mamoru
Nomura, Takefumi
Sonoyama, Tatsuki
Takahashi, Kazuma
Takasu, Sachiko
Fukuda, Daiji
Kashiwazaki, Takahiro
Inoue, Asuka
Umeki, Takeshi
Nehra, Rajveer
Marek, Petr
Filip, Radim
Takase, Kan
Asavanant, Warit
Furusawa, Akira
contents <p>Data for generating figures in the paper. </p> <p>plot_wigners.ipynb   -  code for generating the figures from the data<br>rho_0tap_bootstrap_1000.npy - density matrices without postselection<br>rho_0photon_bootstrap_1000.npy - density matrices for subtracting 0 photons<br>rho_1photon_bootstrap_1000.npy - density matrices for subtracting 1 photon<br>rho_2photon_bootstrap_1000.npy - density matrices for subtracting 2 photons<br>rho_3photon_bootstrap_1000.npy - density matrices for subtracting 3 photons<br>rho_4photon_bootstrap_1000.npy - density matrices for subtracting 4 photons<br>wigners_mean.npy - calculated average Wigner functions for evaluating negativity<br>wigners_std.npy - calculated standard deviation for the average Wigner functions for evaluating negativity</p> <p> </p> <p> </p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_19533547
institution Zenodo
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publishDate 2026
publisher Zenodo
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spellingShingle Data for Four-Photon Subtraction from Picosecond Squeezed Vacuum Demonstrating Wigner Negativity without Loss Correction
Endo, Mamoru
Nomura, Takefumi
Sonoyama, Tatsuki
Takahashi, Kazuma
Takasu, Sachiko
Fukuda, Daiji
Kashiwazaki, Takahiro
Inoue, Asuka
Umeki, Takeshi
Nehra, Rajveer
Marek, Petr
Filip, Radim
Takase, Kan
Asavanant, Warit
Furusawa, Akira
<p>Data for generating figures in the paper. </p> <p>plot_wigners.ipynb   -  code for generating the figures from the data<br>rho_0tap_bootstrap_1000.npy - density matrices without postselection<br>rho_0photon_bootstrap_1000.npy - density matrices for subtracting 0 photons<br>rho_1photon_bootstrap_1000.npy - density matrices for subtracting 1 photon<br>rho_2photon_bootstrap_1000.npy - density matrices for subtracting 2 photons<br>rho_3photon_bootstrap_1000.npy - density matrices for subtracting 3 photons<br>rho_4photon_bootstrap_1000.npy - density matrices for subtracting 4 photons<br>wigners_mean.npy - calculated average Wigner functions for evaluating negativity<br>wigners_std.npy - calculated standard deviation for the average Wigner functions for evaluating negativity</p> <p> </p> <p> </p>
title Data for Four-Photon Subtraction from Picosecond Squeezed Vacuum Demonstrating Wigner Negativity without Loss Correction
url https://doi.org/10.5281/zenodo.19533547