Visnyk of the Lviv University. Series Physics
60 (2023) c. 70-77
DOI: https://doi.org/10.30970/vph.60.2023.70 Preparation of maximally entangled four-qubit states on a quantum computer and calculation of the geometric measure of entanglementB. P. Hnatenko, Kh. P. Gnatenko |
We study maximally entangled four-qubit quantum states. Quantum protocols for preparation of the states and calculation of the geometric measure of entanglement are constructed and realized on IBM's quantum computer ibm-perth. The results of quantum calculations are in agreement with theoretical ones. We show that the quantum device ibm-perth can be in a maximally entangled four-qubit quantum state.