We review the variational quantum eigensolver (VQE) as a near-term route to estimating molecular ground-state energies, formalise the variational principle it rests on, and analyse how the choice of ansatz and the measurement cost of a Pauli-decomposed Hamiltonian govern its practicality. A hybrid classical/quantum optimisation loop is described, and the conditions under which barren plateaus erase the method's advantage are made explicit.
Quantum Algorithms
3 publications tagged Quantum Algorithms.
2026
Formal methods for quantum research workflowsworking paper
Exploring how Lean, Coq, Isabelle/HOL, Z3, and TLA+ could complement tools such as Qiskit, PennyLane, Braket, and QuTiP — from mathematical specifications and proofs to circuit verification and the infrastructure coordinating classical and quantum execution.
Quantum algorithm & verification workbenchExploration
Quantum algorithm research paired with simulation, formal specification and hybrid classical/quantum workflows.