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Section Calculation Modes::Optimal Control
Type float
Default 1.0e-6

Define the convergence threshold. It computes the difference between the "input" field in the iterative procedure, and the "output" field. If this difference is less than OCTEps the iteration is stopped. This difference is defined as:

$ D[\varepsilon^{in},\varepsilon^{out}] = \int_0^T dt \left| \varepsilon^{in}(t)-\varepsilon^{out}(t)\right|^2 $

(If there are several control fields, this difference is defined as the sum over all the individual differences.)

Whenever this condition is satisfied, it means that we have reached a solution point of the QOCT equations, i.e. a critical point of the QOCT functional (not necessarily a maximum, and not necessarily the global maximum).

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