Autor:	Ivanchenko, E. A.
Rok vydání:	2011
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	Based on the Liouville-von Neumann equation, we obtain closed system of equations for the description of a qutrit or coupled qutrits in arbitrary time-dependent external magnetic field. The dependence of the dynamics on the initial states and magnetic field modulation is studied analytically and numerically. We compare the relative entanglement measure's dynamics in the bi-qutrit system with permutation particle symmetry. We find the magnetic field modulation which retains the entanglement in the system of two coupled qutrits. Analytical formulas for entanglement measures in the chain from 2 to 6 qutrits are presented.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1106.2297 Zobrazit plný text záznamu View this record from Arxiv