Holds degrees in Mathematics and Physics - University of Bristol (1970) and PhD in Physics - University of Bristol (1973). He is currently a senior researcher at the Brazilian Center for Research in Physics. Has experience in Physics, with emphasis in General Physics, acting on the following subjects: chaos, the Wigner function, periodic orbits and space phase. Since 2002, has been incorporating the semiclassical study of open quantum systems methods.
 A. M. Ozorio de Almeida: 'The Weyl representation in classical and quantum mechanics“, Physics Reports, Vol.295, pp.265-342, 1998.
 A.R.R. Carvalho, A. Kenfack, F. Toscano, J.M. Rost, A.M. Ozorio de Almeida: “Gaussian representation of extended quantum states”, Physics Letters A, Vol.376, No.1, pp.19-23, 2011. 10.1016/j.physleta.2011.10.029
 O. Brodier, A.M. Ozorio de Almeida: “Markovian evolution of Gaussian states in the semiclassical limit”, Physics Letters A, Vol.374, No.23, pp. 2315-2323, 2010. DOI: 10.1016/j.physleta.2010.03.059
 A.M. Ozorio de Almeida, R.O. Vallejos, E. Zambrano: “Initial or final values for semiclassical evolutions in the Weyl-Wigner representation”, J. Phys. A, Vol. 46, 13504 (15pp), 2013.
 M. Saraceno, A.M. Ozorio de Almeida: “Representation of superoperators in double phase space”, J. Phys A, vol. 49, 145302 (23pp), 2016.