Entanglement Evolution of a 2-Qutrit System Interacting with a Fermionic Bath
Xiao-San Ma, An Min Wang, Xiaodong Yang, Feng Xu · Communications in Theoretical Physics · 2005
Based on the algebraic entanglement measure proposed [G. Vidal et al. , Phys. Rev. A 65 (2002) 032314], we study the entanglement evolution of both pure quantum states and mixed ones of 2-qutrit system in a symmetry-broken environment consisting of a fermionic bath. Entanglement of states will decrease or remain constant under the influence of environment, and the class of states which remain unchanged has been found out.