qiskit.pulse.library.SechDeriv#

qiskit.pulse.library.SechDeriv(duration, amp, sigma, angle=0.0, name=None, limit_amplitude=None)[source]#

An unnormalized sech derivative pulse.

The sech function is centered around the halfway point of the pulse, and the envelope of the pulse is given by:

\[f(x) = \text{A}\frac{d}{dx}\left[\text{sech} \left(\frac{x-\mu}{\text{sigma}}\right)\right] , 0 <= x < duration\]

where \(\text{A} = \text{amp} \times\exp\left(i\times\text{angle}\right)\), \(\mu=\text{duration}/2\), and \(d/dx\) is a derivative with respect to x.

প্যারামিটার:

duration (int | ParameterExpression) -- Pulse length in terms of the sampling period dt.
amp (float | ParameterExpression) -- The magnitude of the amplitude of the pulse (the value of the corresponding sech function at the midpoint duration/2).
sigma (float | ParameterExpression) -- A measure of how wide or narrow the corresponding sech peak is, in terms of dt; described mathematically in the class docstring.
angle (ParameterExpression | float | None) -- The angle in radians of the complex phase factor uniformly scaling the pulse. Default value 0.
name (str | None) -- Display name for this pulse envelope.
limit_amplitude (bool | None) -- If True, then limit the amplitude of the waveform to 1. The default is True and the amplitude is constrained to 1.

রিটার্নস:

ScalableSymbolicPulse instance.

রিটার্ন টাইপ: