By IQT News posted 28 Aug 2020

(NewScientist) Google researchers have used a quantum computer to simulate a chemical reaction for the first time. The reaction is a simple one, but this marks a step towards finding a practical use for quantum computers.
Because atoms and molecules are systems governed by quantum mechanics, quantum computers are expected to be the best way to precisely simulate them. These computers use quantum bits, or qubits, to store information and perform calculations. However, quantum computers have difficulty achieving the precision needed to simulate large atoms or chemical reactions.
The researchers simulated a diazene molecule, which consists of two nitrogen atoms and two hydrogen atoms, undergoing a reaction in which the hydrogen atoms move into different configurations around the nitrogens. The quantum simulation agreed with simulations the researchers performed on classical computers to check their work.

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