Class quantum_circuit
Description
This class models a quantum circuit, providing gate operations, quantum states, probabilities, quantum phases, expectation values, measurements, etc.
class quantum_circuitInheritance
This class does not inherit to any class.
Attributes
This class does not have attributes.
Member Functions
-
construct()— The constructor. Create an instance of classquantum_circuit -
apply_controlled_gate()— Apply controlled-Hermitian gate to the circuit -
apply_gate()— Apply Hermitian gate to the circuit -
barrier()— Add a barrier to the circuit -
bits()— Get total number of classical bits of the circuit -
ccx()— Apply \(CCX\) (also known as Toffoli) gate to the circuit -
classical_bits()— Get the measured classical bits -
cp()— Apply \(CP\) gate to the circuit -
cu()— Apply \(CU\) gate to the circuit -
cx()— Apply \(CX\) (\(CNOT\)) gate to the circuit -
cy()— Apply \(CY\) gate to the circuit -
cz()— Apply \(CZ\) gate to the circuit -
density_operator()— Get density operator of the circuit in little endian order -
draw()— Draw the circuit in ASCII art form -
expectation_value()— Get the expectation value by an observable Hermitian operator \(\hat{A}\) -
h()— Apply \(H\) gate to the circuit -
i()— Apply \(I\) gate to the circuit -
initialise()— Set amplitudes of the state -
iqft()— Apply \(N\)-qubit Inverse Quantum Fourier Transform (\(QFT^\dagger_N\)) to the circuit -
measure()— Measure specific qubit and store the result to classical bit -
p()— Apply \(P\) gate (single-qubit rotation of \(Z\)-axis) to the circuit -
phase()— Get the quantum phase in little endian order -
print_classical_bits()— Print the measured classical bits in a little-endian binary string format -
print_phase()— Print the quantum phase in little endian order -
print_probability()— Print the state probabilities in little endian order -
print_statevector()— Print the statevector \(\ket{\psi}\) of the circuit in little endian order -
probability()— Get the state probabilities in little endian order -
qft()— Apply \(N\)-qubit Quantum Fourier Transform (\(QFT_N\)) to the circuit -
qubits()— Get total number of qubits of the circuit -
rx()— Apply \(Rx\) gate to the circuit -
rxx()— Apply \(Rxx\) gate to the circuit -
ry()— Apply \(Ry\) gate to the circuit -
ryy()— Apply \(Ryy\) gate to the circuit -
rz()— Apply \(Rz\) gate to the circuit -
rzx()— Apply \(Rzx\) gate to the circuit -
rzz()— Apply \(Rzz\) gate to the circuit -
s()— Apply \(S\) gate to the circuit -
sdg()— Apply \(S^{\dagger}\) gate to the circuit -
set_psi()— Set the state \(\ket{\psi}\) -
sqrt_x()— Apply \(\sqrt{X}\) gate to the circuit -
sqrt_xdg()— Apply \(\sqrt{X}^{\dagger}\) gate to the circuit -
statevector()— Get the statevector \(\ket{\psi}\) of the circuit in little endian order -
swap()— Apply \(SWAP\) gate to the circuit -
t()— Apply \(T\) gate to the circuit -
tdg()— Apply \(T^{\dagger}\) gate to the circuit -
u()— Apply \(U\) gate (generic single-qubit rotation of \(ZYZ\) Euler angles) to the circuit -
x()— Apply \(X\) gate to the circuit -
y()— Apply \(Y\) gate to the circuit -
z()— Apply \(Z\) gate to the circuit