Datasets (Parent directories)

The parent directories have the naming convention: CHANNEL_x..._o..._dmax..._int... with

• CHANNEL: -- NSC for non spin conserving observables S_+ and S_- -- SCsymm for spin conserving observable O^exch_+ -- SCasym for spin conserving observable O^exch_-
• x: value of the perturbation parameter x
• o: CUT perturbation order in x
• dmax: maximum triplon distance used in Lanczos
• int: if some multi-triplon interactions were disabled, the maximum number of activated triplons is put here. Otherwise, this part is omitted.

Data types (Child directories)

In each parent directory, the following child directories can be found:

• Disps: Dispersion relations and continuum edges w(q_x) of the relevant multiparticle spaces. Each row contains the value for a different q_x, with the first row being w(0) and the last row w(2*pi) with equidistant steps inbetween.
• DSF: Calculated Green function G(q_x,w). A single file contains the Green function for a single value of q_x and a channel with a fixed number of triplons. For instance, a string 1QP in the file name stands for contributions in the 1-quasiparticle channel. Each file name ends in an integer number n, ranging from 0 to the number of discretized q_x values used. This stands for q_x = pi * n/numQ. When opening the file, the numerical value of q_x is also stated in the commented section. Two file types can be found: -- The files name SD_... show the full Green function for different w -- The files SW_... list only the spectral weight of the full continuum and of all bound states. For bound states, the energy at which they appear is given in the first column. In the case of continuum weights, the first column lists a placeholder value of -1.2345.
• LC_Used: The used Lanczos coefficients a and b². The naming convention of the files is similar to the DSF directory.