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Year 2·Month 34·Week 4

Day 947: Variational Quantum Eigensolver (VQE)

Day 947 of 2,016~16 min read

Learning Objectives

•Explain the variational principle and its application to quantum ground state estimation
•Design and implement parameterized quantum circuits (ansatzes) for VQE
•Apply the parameter shift rule for computing quantum gradients
•Decompose molecular Hamiltonians into Pauli strings
•Implement complete VQE workflows for small molecules
•Analyze VQE convergence and optimization landscapes

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