Quantifying concurrence of two-qubit quantum states on a quantum computer
P. V. Sapriianchuk, Kh. P. Gnatenko · Visnyk of the Lviv University Series Physics · 2023
The concurrence of two-qubit quantum states is considered.Relation between the concurrence and the parameters of an arbitrary two-qubit quantum state is presented and quantified with quantum computing.For this purpose the mean values of spin operators are calculated on a quantum device.Results obtained on a quantum computer are in a good agreement with theoretical ones.