qiskit.pulse.library.cos

cos(duration, amp, freq=None, phase=0, name=None)

Generates cosine wave Waveform.

For \(A=\) amp, \(\omega=\) freq, and \(\phi=\) phase, applies the midpoint sampling strategy to generate a discrete pulse sampled from the continuous function:

\[f(x) = A \cos(2 \pi \omega x + \phi)\]

Parameters

• duration (int) – Duration of pulse. Must be greater than zero.

• amp (complex) – Pulse amplitude.

• freq (Optional[float]) – Pulse frequency, units of 1/dt. If None defaults to single cycle.

• phase (float) – Pulse phase.

• name (Optional[str]) – Name of pulse.

Return type

Waveform