[2] Bauman Moscow State Tech Univ, 2nd Baumanskaya Str 5, Moscow 105005, Russia
[3] State Univ, Moscow Inst Phys & Technol, Inst Skii Per 9, Dolgoprudnyi 141700, Moscow Region, Russia
来源:
SYMMETRIES IN SCIENCE XVIII
|
2020年
/
1612卷
关键词:
quantum tomography;
probability representation;
quantizer-dequantizer operators;
qubit states;
STAR PRODUCTS;
DISTRIBUTIONS;
D O I:
10.1088/1742-6596/1612/1/012009
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
A review of the approach where the states of quantum systems are identified with fair probability distributions is presented. The quantizer-dequantizer operators used to construct the invertible map of the density operators onto the probability distributions are applied to obtain the kinetic equations for probability distributions identified with the quantum system states. For qubit states, the von Neumann evolution equation for the density operator is explicitly given in the form of kinetic equation for the probability distribution. Simplest tomographic probability distributions describing the states of multimode quantum oscillator are constructed.