2018-06-112018-05-02CARRIJO, T. M. Incerteza quântica local em transições de fase quânticas e uma generalização para sistemas multipartidos. 2018. 58 f. Tese (Doutorado em Fisica) - Universidade Federal de Goiás, Goiânia, 2018.http://repositorio.bc.ufg.br/tede/handle/tede/8562In this work, we have studied how local quantum uncertainty (LQU) and linear entropy behave in critical systems. Two models of spin 1/2 systems were investigated: XY and XY with triple interaction (XYT), both unidimensional. It was concluded that these measures and their derivatives locate the phase transitions of these systems and a justification was given for the difference of behavior between the LQU and the linear entropy in the region near the transition in the XY model. A measure of multipartite quantum correlations was also created according to a set of axiomatic criteria, which was tested in the family of Werner-GHZ quantum states, producing results in accordance with the expected result, according to the literature.application/pdfAcesso AbertoCorrelação quânticaTransição de fase quânticaMultipartidoMultipartido quantumCorrelationQuantum phase transitionMultipartiteCIENCIAS EXATAS E DA TERRA::FISICATese