identity_stf
Graph.identity_stf()Create an Stf representing the identity function, f(t) = t.
Returns
An Stf representing the identity function.
Return type
SEE ALSO
Graph.constant_stf
: Create a batch of constant Stfs.
Graph.discretize_stf
: Discretize an Stf into a Pwc.
Graph.sample_stf
: Sample an Stf at given times.
Notes
For more information on Stf nodes see the Working with time-dependent functions in Boulder Opal topic.
Examples
Create Gaussian pulse.
>>> time = graph.identity_stf()
>>> time
<Stf: operation_name="identity_stf", value_shape=(), batch_shape=()>
>>> gaussian = graph.exp(- time ** 2)
>>> gaussian
<Stf: operation_name="exp", value_shape=(), batch_shape=()>See more examples in the How to define continuous analytical Hamiltonians user guide.