caa a22 4500 445858427 CHVBK 20180317145435.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10946-011-9250-y doi (NATIONALLICENCE)springer-10.1007/s10946-011-9250-y Relaxation equations for the qubit in the tomographic representation [Elektronische Daten] [Yury Belousov, Sergey Filippov, Vladimir Man'ko, Igor Traskunov] Within the framework of the tomographic-probability representation of quantum mechanics, we revisit the problem of the qubit evolution and show that the dynamics can be efficiently separated into two processes, namely, the unitary-like rotation and the relaxation. We study both types of evolution and derive analogs of the master equation for tomographic probabilities. We derive the tomographic relaxation equation for the qubit spin tomogram and investigate the properties of its solution for both anisotropic and isotropic cases of the relaxation. We analyze the relation between the spin tomographic description and the symmetric informationally complete description of the qubit time evolution. Springer Science+Business Media, Inc., 2011 probability representation of quantum mechanics nationallicence quantum kinetic equation nationallicence quantum tomography nationallicence qubit nationallicence Belousov Yury Moscow Institute of Physics and Technology (State University), Institutskii per. 9, 141700, Dolgoprudnyi, Moscow Region, Russia aut Filippov Sergey Moscow Institute of Physics and Technology (State University), Institutskii per. 9, 141700, Dolgoprudnyi, Moscow Region, Russia aut Man'ko Vladimir P. N. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii Prospect 53, 119991, Moscow, Russia aut Traskunov Igor Moscow Institute of Physics and Technology (State University), Institutskii per. 9, 141700, Dolgoprudnyi, Moscow Region, Russia aut Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/6(2011-11-01), 584-595 1071-2836 32:6<584 2011 32 10946 https://doi.org/10.1007/s10946-011-9250-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10946-011-9250-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Belousov Yury Moscow Institute of Physics and Technology (State University), Institutskii per. 9, 141700, Dolgoprudnyi, Moscow Region, Russia aut NATIONALLICENCE 700 1- Filippov Sergey Moscow Institute of Physics and Technology (State University), Institutskii per. 9, 141700, Dolgoprudnyi, Moscow Region, Russia aut NATIONALLICENCE 700 1- Man'ko Vladimir P. N. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii Prospect 53, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Traskunov Igor Moscow Institute of Physics and Technology (State University), Institutskii per. 9, 141700, Dolgoprudnyi, Moscow Region, Russia aut NATIONALLICENCE 773 0- Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/6(2011-11-01), 584-595 1071-2836 32:6<584 2011 32 10946 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer