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21 changes: 19 additions & 2 deletions src/problem_templates/unitary_smooth_pulse_problem.jl
Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,7 @@ function UnitarySmoothPulseProblem(
unitary_integrator=UnitaryIntegrator,
state_name::Symbol = :Ũ⃗,
control_name::Symbol = :a,
time_name::Symbol = :t,
timestep_name::Symbol = :Δt,
init_trajectory::Union{NamedTrajectory, Nothing}=nothing,
a_guess::Union{Matrix{Float64}, Nothing}=nothing,
Expand Down Expand Up @@ -121,6 +122,11 @@ function UnitarySmoothPulseProblem(
)
end

if typeof(system) == TimeDependentQuantumSystem
add_component!(traj, time_name, get_times(traj))
update_bound!(traj, time_name, (0.0, Δt_max*T))
end

# Objective
J = UnitaryInfidelityObjective(goal, state_name, traj; Q=Q)

Expand All @@ -138,12 +144,23 @@ function UnitarySmoothPulseProblem(
J, constraints, piccolo_options, traj, state_name, timestep_name;
state_leakage_indices=goal isa EmbeddedOperator ? get_leakage_indices(goal) : nothing
)

integrators = [
unitary_integrator(system, traj, state_name, control_name),
DerivativeIntegrator(traj, control_name, control_names[2]),
DerivativeIntegrator(traj, control_names[2], control_names[3]),
]
if typeof(system) == TimeDependentQuantumSystem
integrators = [
TimeDependentUnitaryIntegrator(system, traj, state_name, control_name, time_name),
integrators...,
TimeIntegrator(traj, time_name)
]
else
integrators = [
unitary_integrator(system, traj, state_name, control_name),
integrators...
]
end

return DirectTrajOptProblem(
traj,
Expand Down
27 changes: 27 additions & 0 deletions src/quantum_integrators.jl
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@ export KetIntegrator
export UnitaryIntegrator
export DensityMatrixIntegrator
export VariationalUnitaryIntegrator
export TimeDependentKetIntegrator
export TimeDependentUnitaryIntegrator

using LinearAlgebra
using NamedTrajectories
Expand Down Expand Up @@ -80,5 +82,30 @@ function VariationalUnitaryIntegrator(
return BilinearIntegrator(Ĝ, traj, var_Ũ⃗, a)
end

# ----------------------------------------------------------------------------- #
# Default Integrators
# ----------------------------------------------------------------------------- #

function TimeDependentKetIntegrator(
sys::TimeDependentQuantumSystem,
traj::NamedTrajectory,
ψ̃::Symbol,
a::Symbol ,
t::Symbol
)
return TimeDependentBilinearIntegrator(sys.G, traj, ψ̃, a, t)
end

function TimeDependentUnitaryIntegrator(
sys::TimeDependentQuantumSystem,
traj::NamedTrajectory,
Ũ⃗::Symbol,
a::Symbol,
t::Symbol
)
Ĝ = (a_, t_) -> I(sys.levels) ⊗ sys.G(a_,t_)
return TimeDependentBilinearIntegrator(Ĝ, traj, Ũ⃗, a, t)
end


end