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Quantum Engineering Year 1: Quantum Mechanics Core Month 16Day 437

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Year 1·Month 16·Week 3

Day 437: Darwin Term

Day 437 of 2,016~2 min read

Learning Objectives

•Understand the physical origin of the Darwin term
•Derive the Darwin Hamiltonian
•See why it only affects l = 0 states
•Calculate the energy correction
•Connect to the Dirac equation

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Physical Origin The Darwin Hamiltonian Why Only s-Orbitals First-Order Correction Combining with Spin-Orbit

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