Geometrical quantum discord and negativity of two separable and mixed qubits

Liu Tang-Kun^†, Liu Fei, Shan Chuan-Jia, Liu Ji-Bing

The GD(t) for P = 0.5 against the scaled time gt. In panels (a)–(d), ∣ α ∣ = 1 , 5 , 10 , 15 , respectively.