Data repository for the paper: "Solving the inverse parametric problem"
Authors/Creators
- 1. KTH - Royal Institute of Technology
-
2.
Dartmouth College
Description
Abstract:
We present a method to calculate the frequency components of a pump waveform driving a parametric oscillator, which realizes a desired frequency mixing or scattering between frequency modes. The method is validated by numerical analysis and we study its sensitivity to added Gaussian noise. A series of experiments apply the method and demonstrate its ability to realize complex scattering processes involving many modes at microwave frequencies, including non-reciprocal mode circulation. We also present an approximate method to dynamically control mode scattering, capable of rapidly routing signals between modes in a prescribed manner. These methods are useful tools for encoding and manipulating continuous variable quantum information with multi-modal Gaussian states.
Article DOI:
ArXiV: arXiv:2512.15453
Notes
Description:
Data Files:
- Error_vs_N_2025-10-01_22_56.npz -- Numerical data analysis used to generate Fig.2 (generated by Inverse_Pump_Problem_Analysis.ipynb))
- Error_vs_N_stat2025-10-07_06_08.npz -- Numerical data analysis used to generate Fig.2 (generated by Inverse_Pump_Problem_Analysis.ipynb)
- Error_vs_N_2025-10-01_22_56.npz -- Numerical data analysis used to generate Fig.2
- Error_vs_N_stat2025-10-07_06_08.npz -- Numerical data analysis used to generate Fig.2
- Data_Img.hdf5 -- JPA Experimental Data for Image of Fig. 5
- PeaceFilmx2_BW_96x151.png -- Original image used for the experiment of Fig. 5
- Stargets_Image_PeaceFilmx2_BW_96x151.npz -- Numerical data, and Numerical scattering matrix corresponding to experiment of Fig. 5
- 2025-11.hdf5 -- Dataset used for Fig. 3 and Fig. 4
Contains:
1. '2025-11-14_10_23_31' -- Dataset to create Fig.3
2. '2025-11-21_16_40_49' -- Dataset to create Fig.4
- Sexp_abs_dB_3.npz -- Extracted data from 2025-11.hdf5 for Figure 3
- S_tar_dB_13_best.npz -- Extracted data from 2025-11.hdf5 for Figure 4
- Sexp_abs_dB_13_best.npz -- Extracted data from 2025-11.hdf5 for Figure 4
Data Folders:
- Folders.zip
1. Scattering -- Contains the pumping scheme used for the experiment of Fig. 3
2. Pumping Scheme NonRec -- Contains the pumping scheme used for the experiment of Fig. 4
Figure Scripts:
- Figures_InversePumpProblem_Fig2.ipynb -- Jupiter notebook script to generate Fig.2
- Figures_InversePumpProblem_Fig3.ipynb -- Jupiter notebook script to generate Fig.3
- Figures_InversePumpProblem_Fig4.ipynb -- Jupiter notebook script to generate Fig.4
- Figures_InversePumpProblem_Fig5.ipynb -- Jupiter notebook script to generate Fig.5
Data Analysis Scripts:
- Inverse_Pump_Problem_Analysis.ipynb -- Script that perform the numerical study of validation of the PPM behind Fig.2
- Img2Scattering.ipynb -- Script to generate pumping scheme to recreate an image (used to generate the pumping scheme that generates Fig. 5 )
- inverse_problem_visualize_&_savedata.ipynb -- Script to Visualize and save npz files to generate Fig. 3 and Fig. 4
Libraries:
- myPy_functions.py -- Library of functions with inverse (PPM) and direct scattering problems solver and other functions used to analyzed data
- PyPump.py -- Library with functions of the PPM problem only
Files
Figures_InversePumpProblem_Fig2.ipynb
Files
(65.2 MB)
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Additional details
Dates
- Available
-
2026-03-11
Software
- Programming language
- Python