Probability representation of quantum observable and quantum states
Quantum Physics
2018-06-28 v1
Abstract
We introduce the probability distributions describing quantum observables in conventional quantum mechanics and clarify their relations to the tomographic probability distributions describing quantum states. We derive the evolution equation for quantum observables (Heisenberg equation) in the probability representation and give examples of the spin-1/2 (qubit) states and the spin observables. We present quantum channels for qubits in the probability representation.
Cite
@article{arxiv.1806.10381,
title = {Probability representation of quantum observable and quantum states},
author = {Vladimir N. Chernega and Olga V. Man'ko and Vladimir I. Man'ko},
journal= {arXiv preprint arXiv:1806.10381},
year = {2018}
}