Installation Required: This functionality requires MATLAB Support Package for Quantum Computing.
Identity Gate and Its Matrix Representation
Create an identity gate that acts on a single qubit.
g = idGate(1)
g = SimpleGate with properties: Type: "id" ControlQubits: [1×0 double] TargetQubits: 1 Angles: [1×0 double]
Get the matrix representation of the gate.
M = getMatrix(g)
M = 1 0 0 1
Array of Identity Gates
Create an array of identity gates that act on qubits with indices 1 to 4.
g = idGate(1:4)
g = 4×1 SimpleGate array with gates: Id Gate Control Target 1 id 1 2 id 2 3 id 3 4 id 4
targetQubit — Target qubit of gate
positive integer scalar | positive integer vector
Target qubit of the gate, specified as a positive integer scalar index or vector of qubit indices.
Matrix Representation of Identity Gate
The matrix representation of an identity gate applied to a single qubit is
This gate leaves the qubit state unchanged.
Introduced in R2023a