Circuit Library
Circuit Library
qiskit.circuit.library
Standard Gates
Barrier (num_qubits) | Barrier instruction. |
C3XGate ([angle, label, ctrl_state]) | The 3-qubit controlled X gate. |
C4XGate ([label, ctrl_state]) | The 4-qubit controlled X gate. |
CCXGate ([label, ctrl_state]) | CCX gate, also known as Toffoli gate. |
DCXGate () | Double-CNOT gate. |
CHGate ([label, ctrl_state]) | Controlled-Hadamard gate. |
CRXGate (theta[, label, ctrl_state]) | Controlled-RX gate. |
CRYGate (theta[, label, ctrl_state]) | Controlled-RY gate. |
CRZGate (theta[, label, ctrl_state]) | Controlled-RZ gate. |
CSwapGate ([label, ctrl_state]) | Controlled-X gate. |
CU1Gate (theta[, label, ctrl_state]) | Controlled-U1 gate. |
CU3Gate (theta, phi, lam[, label, ctrl_state]) | Controlled-U3 gate (3-parameter two-qubit gate). |
CXGate ([ctrl_state, label]) | Controlled-X gate. |
CYGate ([label, ctrl_state]) | Controlled-Y gate. |
CZGate ([label, ctrl_state]) | Controlled-Z gate. |
HGate ([label]) | Single-qubit Hadamard gate. |
IGate ([label]) | Identity gate. |
Measure () | Quantum measurement in the computational basis. |
MSGate (num_qubits, theta, *[, n_qubits, label]) | Global Mølmer–Sørensen gate. |
RCCXGate ([label]) | The simplified Toffoli gate, also referred to as Margolus gate. |
RC3XGate ([label]) | The simplified 3-controlled Toffoli gate. |
Reset () | Qubit reset. |
RXGate (theta[, label]) | Single-qubit rotation about the X axis. |
RXXGate (theta) | A parameteric 2-qubit interaction (rotation about XX). |
RYGate (theta[, label]) | Single-qubit rotation about the Y axis. |
RYYGate (theta) | A parameteric 2-qubit interaction (rotation about YY). |
RZGate (phi[, label]) | Single-qubit rotation about the Z axis. |
RZZGate (theta) | A parameteric 2-qubit interaction (rotation about ZZ). |
RZXGate (theta) | A parameteric 2-qubit interaction (rotation about ZX). |
SGate ([label]) | Single qubit S gate (Z**0.5). |
SdgGate ([label]) | Single qubit S-adjoint gate (~Z**0.5). |
SwapGate ([label]) | The SWAP gate. |
iSwapGate () | iSWAP gate. |
TGate ([label]) | Single qubit T gate (Z**0.25). |
TdgGate ([label]) | Single qubit T-adjoint gate (~Z**0.25). |
U1Gate (theta[, label]) | Single-qubit rotation about the Z axis. |
U2Gate (phi, lam[, label]) | Single-qubit rotation about the X+Z axis. |
U3Gate (theta, phi, lam[, label]) | Generic single-qubit rotation gate with 3 Euler angles. |
XGate ([label]) | The single-qubit Pauli-X gate (). |
YGate ([label]) | The single-qubit Pauli-Y gate (). |
ZGate ([label]) | The single-qubit Pauli-Z gate (). |
Generalized Gates
Diagonal (diag) | Diagonal circuit. |
MCMT (gate, num_ctrl_qubits, num_target_qubits) | The multi-controlled multi-target gate, for an arbitrary singly controlled target gate. |
MCMTVChain (gate, num_ctrl_qubits, …) | The MCMT implementation using the CCX V-chain. |
Permutation (num_qubits[, pattern, seed]) | An n_qubit circuit that permutes qubits. |
GMS (num_qubits, theta) | Global Mølmer–Sørensen gate. |
Boolean Logic Circuits
AND (num_variable_qubits[, flags, mcx_mode]) | A circuit implementing the logical AND operation on a number of qubits. |
OR (num_variable_qubits[, flags, mcx_mode]) | A circuit implementing the logical OR operation on a number of qubits. |
XOR (num_qubits[, amount, seed]) | An n_qubit circuit for bitwise xor-ing the input with some integer amount . |
InnerProduct (num_qubits) | An n_qubit circuit that computes the inner product of two registers. |
Basis Change Circuits
QFT ([num_qubits, approximation_degree, …]) | Quantum Fourier Transform Circuit. |
Arithmetic Circuits
Functional Pauli Rotations
FunctionalPauliRotations ([num_state_qubits, …]) | Base class for functional Pauli rotations. |
LinearPauliRotations ([num_state_qubits, …]) | Linearly-controlled X, Y or Z rotation. |
PolynomialPauliRotations ([num_state_qubits, …]) | A circuit implementing polynomial Pauli rotations. |
PiecewiseLinearPauliRotations ([…]) | Piecewise-linearly-controlled Pauli rotations. |
Adders
WeightedAdder ([num_state_qubits, weights, name]) | A circuit to compute the weighted sum of qubit registers. |
Comparators
IntegerComparator ([num_state_qubits, value, …]) | Integer Comparator. |
Particular Quantum Circuits
FourierChecking (f, g) | Fourier checking circuit. |
GraphState (adjacency_matrix) | Circuit to prepare a graph state. |
HiddenLinearFunction (adjacency_matrix) | Circuit to solve the hidden linear function problem. |
IQP (interactions) | Instantaneous quantum polynomial (IQP) circuit. |
QuantumVolume (num_qubits[, depth, seed, …]) | A quantum volume model circuit. |
N-local circuits
NLocal ([num_qubits, rotation_blocks, …]) | The n-local circuit class. |
TwoLocal ([num_qubits, rotation_blocks, …]) | The two-local circuit. |
RealAmplitudes ([num_qubits, entanglement, …]) | The RealAmplitudes 2-local circuit. |
EfficientSU2 ([num_qubits, su2_gates, …]) | The hardware efficient SU(2) 2-local circuit. |
ExcitationPreserving ([num_qubits, mode, …]) | The heurisitic excitation-preserving wave function ansatz. |
Data encoding circuits
PauliFeatureMap ([feature_dimension, reps, …]) | The Pauli Expansion circuit. |
ZFeatureMap (feature_dimension[, reps, …]) | The first order Pauli Z-evolution circuit. |
ZZFeatureMap (feature_dimension[, reps, …]) | Second-order Pauli-Z evolution circuit. |
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