seemps.evolution.arnoldi#

seemps.evolution.arnoldi(H: MPO, time: float | tuple[float | int | floating | integer, float | int | floating | integer] | Sequence[float | int | floating | integer] | ndarray[tuple[Any, ...], dtype[_ScalarT]], state: MPS, steps: int = 1000, order: int = 6, strategy: Strategy = DEFAULT_STRATEGY, callback: Callable[[float, MPS], Any] | None = None, itime: bool = False) TypeAliasForwardRef('~seemps.state.MPS') | list[Any][source]#

Solve a Schrodinger equation using a variable order Arnoldi approximation to the exponential.

See seemps.evolution.euler() for a description of the missing function arguments and the function’s output.

Parameters:
orderint, default = 5

Maximum order of the Arnoldi representation.