New criteria reveal VQE needs fault-tolerant quantum computers due to decoherence and QPE has exponentially suppressed success probability from orthogonality catastrophe in classical input states.
(8) imply in prac- tice? It is generally accepted that a quantum chemistry calculation must reach ”chemical accuracy”, ηchem = 1kcal/mol ≈ 1.6mHa ≈ 500K (for energy dif- ferences)
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Feasibility of performing quantum chemistry calculations on quantum computers
New criteria reveal VQE needs fault-tolerant quantum computers due to decoherence and QPE has exponentially suppressed success probability from orthogonality catastrophe in classical input states.