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RX Gate

\begin{bmatrix}\cos\left(\frac{ θ}{2}\right)&- i\cdot\sin\left(\frac{ θ}{2}\right)\\- i\cdot\sin\left(\frac{ θ}{2}\right)&\cos\left(\frac{ θ}{2}\right)\end{bmatrix}

This gate applies a rotation of radians about the -axis to a single qubit.

It can also be defined by:

where is the Pauli X gate.

Parameters

: Angle to rotate the state by, in radians.

Resources

See the Qiskit documentation for the rx gate: https://quantum.cloud.ibm.com/docs/en/api/qiskit/qiskit.circuit.library.RXGate