| from qiskit import QuantumCircuit |
| from qiskit.circuit.library import QFT |
|
|
| def builder_bell_circuit(): |
| qc = QuantumCircuit(2, 2) |
| qc.h(0) |
| qc.cx(0, 1) |
| qc_for_visual = qc.copy() |
| qc.measure([0, 1], [0, 1]) |
| return qc, qc_for_visual |
|
|
| def builder_ghz_circuit(qubits): |
| qc = QuantumCircuit(qubits, qubits) |
| qc.h(0) |
| for i in range(1, qubits): |
| qc.cx(0, i) |
| qc_for_visual = qc.copy() |
| qc.measure(range(qubits), range(qubits)) |
| return qc, qc_for_visual |
|
|
| def builder_superposition_circuit(qubits): |
| qc = QuantumCircuit(qubits, qubits) |
| for i in range(qubits): |
| qc.h(i) |
| qc_for_visual = qc.copy() |
| qc.measure(range(qubits), range(qubits)) |
| return qc, qc_for_visual |
|
|
| def builder_custom_circuit(rx_angle, ry_angle, rz_angle): |
| qc = QuantumCircuit(2, 2) |
| qc.rx(rx_angle, 0) |
| qc.ry(ry_angle, 1) |
| qc.rz(rz_angle, 0) |
| qc.h(0) |
| qc.cx(0, 1) |
| qc_for_visual = qc.copy() |
| qc.measure([0, 1], [0, 1]) |
| return qc, qc_for_visual |
|
|
| def builder_quantum_teleportation(): |
| qc = QuantumCircuit(3, 3) |
| qc.h(1) |
| qc.cx(1, 2) |
| qc.cx(0, 1) |
| qc.h(0) |
| qc.measure([0, 1], [0, 1]) |
| qc.cx(1, 2) |
| qc.cz(0, 2) |
| qc_for_visual = qc.copy() |
| qc.measure(2, 2) |
| return qc, qc_for_visual |
|
|
| def builder_qft_circuit(n=3): |
| qc = QuantumCircuit(n, n) |
| qc.h(0) |
| for i in range(1, n): |
| qc.cp(3.1415 / 2**i, i, 0) |
| qc.append(QFT(n), range(n)) |
| qc_for_visual = qc.copy() |
| qc.measure(range(n), range(n)) |
| return qc, qc_for_visual |
|
|
| def builder_grover_circuit(): |
| qc = QuantumCircuit(2, 2) |
| qc.h([0, 1]) |
| qc.cz(0, 1) |
| qc.h([0, 1]) |
| qc_for_visual = qc.copy() |
| qc.measure([0, 1], [0, 1]) |
| return qc, qc_for_visual |
|
|
| def builder_deutsch_jozsa(): |
| qc = QuantumCircuit(2, 2) |
| qc.x(1) |
| qc.h([0, 1]) |
| qc.cz(0, 1) |
| qc.h(0) |
| qc_for_visual = qc.copy() |
| qc.measure([0, 1], [0, 1]) |
| return qc, qc_for_visual |
|
|
| def builder_qpe_circuit(): |
| qc = QuantumCircuit(3, 1) |
| qc.h([0, 1]) |
| qc.cx(1, 2) |
| qc.cx(0, 2) |
| qc.append(QFT(2).inverse(), [0, 1]) |
| qc_for_visual = qc.copy() |
| qc.measure(0, 0) |
| return qc, qc_for_visual |
|
|
| def builder_coin_toss(): |
| qc = QuantumCircuit(1, 1) |
| qc.h(0) |
| qc_for_visual = qc.copy() |
| qc.measure(0, 0) |
| return qc, qc_for_visual |
|
|
| def builder_bell_measurement(): |
| qc = QuantumCircuit(2, 2) |
| qc.h(0) |
| qc.cx(0, 1) |
| qc_for_visual = qc.copy() |
| qc.measure([0, 1], [0, 1]) |
| return qc, qc_for_visual |
|
|
| def builder_swap_test(): |
| qc = QuantumCircuit(3, 1) |
| qc.h(0) |
| qc.cx(0, 1) |
| qc.cx(0, 2) |
| qc.h(0) |
| qc_for_visual = qc.copy() |
| qc.measure(0, 0) |
| return qc, qc_for_visual |
|
|
| def builder_w_state(): |
| qc = QuantumCircuit(3, 3) |
| qc.ry(2.094, 0) |
| qc.cx(0, 1) |
| qc.ry(1.571, 1) |
| qc.cx(1, 2) |
| qc_for_visual = qc.copy() |
| qc.measure([0, 1, 2], [0, 1, 2]) |
| return qc, qc_for_visual |
|
|
