@article{prataviera_mizrahi_2014,  title={Many-particle Sudarshan-Lindblad equation: mean-field approximation, nonlinearity and dissipation in a spin system},  volume={36},  ISSN={1806-1117},  url={https://doi.org/10.1590/S1806-11172014000400004},  DOI={10.1590/S1806-11172014000400004},  number={4},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Prataviera, G.A. and Mizrahi, S.S.},  year={2014},  month={Oct},  pages={4303} }