Посилання:Wigner function description of a qubit-oscillator system / J. Allen, A.M. Zagoskin // Физика низких температур. — 2013. — Т. 39, № 3. — С. 372–377. — Бібліогр.: 11 назв. — англ.
We derive the Bloch-type equations of motion for the Wigner function of a qubit nonlinearly coupled to a linear
oscillator, and investigate their usefulness in the quantum-classical transition regime.