Principles of Quantum Mechanics · Problem 11.2.1

Symmetries and Their Consequences — R. Shankar

Physics — Quantum Mechanics · translational-invariance

Problem

Verify Eq. (11.2.11b): ⟨P⟩→⟨P⟩+ε⟨f(X)⟩\langle P\rangle \to \langle P\rangle + \varepsilon\langle f(X)\rangle

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