Interaction Picture

Warning: Operator equations which hold in the interaction picture don't necessarily hold in the Schrödinger or the Heisenberg picture. This is because the operators A_I, A_S and A_H are not the same but are related by unitary transformations. Unfortunately, most textbooks and articles omit the subscript which can often lead to confusion and mistakes when an unwary student applies an equation for one picture for another picture. SWITCHING PICTURES To switch into the interaction picture, we divide the Schrödinger picture Hamiltonian into two parts, $H_S = H_{0,S} + H_{1, S}$ . Then the state vector is defined as:
	:<math> I \hbar Rac{d}{dt} \psi {I} (t) Ang	H_{1, I} \psi_{I} (t) ang </math>

	CATEGORIES ABOUT INTERACTION PICTURE

	quantum mechanics

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