Abstract
The global quench dynamics of 3-state quantum Potts spin chain is investigated for different initial states using quantum renormalization group method. The results show that the value of negativity is maximum or minimum at quantum phase transition point and the steady value of negativity is also dependent on the initial states, which means that the dynamic behavior is strongly dependent on the initial states. The range of negativity is decreases as the size of system increases for different steps of renormalization group transformations.
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