QCANT.qrte_qulacs

QCANT.qrte_qulacs(symbols: Sequence[str], geometry, *, delta_t: float, n_steps: int, active_electrons: int, active_orbitals: int, basis: str = 'sto-3g', charge: int = 0, spin: int = 0, overlap_tol: float = 1e-10, basis_threshold: float = 0.0, return_min_energy_history: bool = False, evolution_mode: str = 'sparse', trotter_steps: int = 1, max_workers: int | None = None)

Qulacs-backed QRTE using exact sparse or Trotterized evolution.

For larger qubit counts, prefer evolution_mode="trotter" to avoid materializing the Hamiltonian matrix.