Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Brillouin–Wigner perturbation theory | Statement: [Léon Brillouin, notableConcept, Brillouin–Wigner perturbation theory]

Target entity: Brillouin–Wigner perturbation theory
Context triple: [Léon Brillouin, notableConcept, Brillouin–Wigner perturbation theory]

• A. Brillouin–Wigner perturbation theory chosen
  Brillouin–Wigner perturbation theory is a formulation of quantum mechanical perturbation theory that uses an energy-dependent effective Hamiltonian to obtain improved approximations to eigenvalues and eigenstates.
• B. Rayleigh–Schrödinger perturbation theory
  Rayleigh–Schrödinger perturbation theory is a fundamental method in quantum mechanics for approximating the energies and states of a system by treating interactions as small corrections to an exactly solvable problem.
• C. Herzberg–Teller approximation
  The Herzberg–Teller approximation is a refinement in molecular spectroscopy that accounts for vibronic coupling by allowing electronic transition dipole moments to depend on nuclear coordinates, explaining intensity in otherwise forbidden transitions.
• D. Heitler–London theory of the chemical bond
  The Heitler–London theory of the chemical bond is an early quantum mechanical model that explains covalent bonding by treating it as the result of electron exchange and spin pairing between atoms.
• E. Born–Oppenheimer approximation
  The Born–Oppenheimer approximation is a fundamental method in molecular quantum mechanics that simplifies calculations by treating nuclear motion as much slower than electronic motion, allowing their behaviors to be separated.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.