Dataset for the paper "von Neumann entropy of phase space structures in gyrokinetic plasma turbulence"

Description This dataset contains selected data from a nonlinear gyrokinetic simulation performed with the GKV code. The uploaded files are: fig_NL_case13.pdf: summary PDF of the GKV simulation run. Two fxv_timeseries_*.nc files: extracted time-series data of the velocity-space distribution function fxv for selected Fourier modes. Two svd_*.nc files: singular value decomposition results obtained from the corresponding fxv_*.nc files. Due to file-size limitations, the full .zarr output of the simulation is not included. Instead, only the selected Fourier modes used in the paper are extracted and uploaded. NetCDF file structure The fxv_timeseries_*.nc files contain: coordinates: t, vperp, vpara variables: fxv_real(t, vperp, vpara): real part of fxv fxv_imag(t, vperp, vpara): imaginary part of fxv fxv_abs2(t, vperp, vpara): squared amplitude |fxv|^2 The svd_*.nc files contain: coordinates: t, vperp, vpara, mode, feature variables: singular_value(mode): singular values temporal_coeff(t, mode): temporal coefficients a_i(t)=s_i U_i(t) left_singular_vector(t, mode): left singular vectors velocity_structure(vperp, vpara, mode): velocity-space structures of the SVD modes right_singular_vector_feature(mode, feature): flattened right singular vectors mean_field(vperp, vpara): time-averaged field subtracted before SVD eta_ti(t, mode): instantaneous normalized modal contribution eta_i_mean(mode): time-averaged normalized modal contribution For details of the GKV code, calculation conditions, execution procedure, and data format, please refer to: GKV website: https://www.p.phys.nagoya-u.ac.jp/gkv/ GKV GitHub repository: https://github.com/GKV-developers