Mustansiriyah Journal of Pure and Applied Sciences

study to produce eight entangled states of a quantum circuit consisting of four qubits using quantum gates

مصطفى حسين موسى

كلية التربية الجامعة المستنصرية

أ.م.د مزهر باقر صالح

أ.د. اسماعيل عبدالله اخلاطي

DOI: https://doi.org/10.47831/mjpas.v3i1.133

Keywords: Qubit state, Quantum entanglement, Quantum superposition, Quantum gates

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Abstract

Study of a quantum circuit consisting of four qubits that produces an output state consisting of eight entangled states through the CNOT –gates and the three Hadamard gates. targeting the gates to |q0q1q2q3> to show the other entangled states, We used quantum gates that give the same arrangement as the circuit gates and for the same inputs, taking into account the output of a quantum circuit that contains entangled states. As a general case, we used an X-gate and a SWAP-gate, For inputs|0000> .We obtained a general change to the output state while keeping the eight states maximally entangled.