Quantum Discord for Two-Qubit System in a Symmetry-Broken Environment |
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| Authors: | Jing Nie Xiuyi Yang Chong Li |
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| Institution: | 1. School of Science, Liaoning University of Science and Technology, Anshan, 114051, China
2. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, China
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| Abstract: | In contrast with the entanglement, we study the quantum discord dynamics of the two-qubit system in a symmetry-broken environment consisting of a fermionic bath. The quantum discord decay induced by the bath is analysed. By considering the two qubits that are initially prepared in the different X-states, we find that the behaviors of quantum discord and entanglement are different, the robustness of quantum discord depends on the initial state prepared in. |
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