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Thursday, April 14, 2022

Quantum Computers Get Smarter at Simulating Chemistry

Useful direction, having worked in a chem lab, would be useful to have an idea of what you will get. 

Quantum Computers Get Smarter at Simulating Chemistry

IEEE Spectrum, Charles Q. Choi, March 17, 2022

A team of scientists from multiple institutions used Google's Sycamore quantum processor to conduct the largest chemistry simulations involving quantum computers to date, tapping a new method that may better handle quantum circuits' noise. The researchers ran a fermionic quantum Monte Carlo algorithm in a hybrid classical-quantum computation framework so it would scale well. They employed 16 quantum bits (qubits) on the 53-qubit Sycamore system to calculate the ground state of H4 molecules, molecular nitrogen, and solid diamond molecules. Google Quantum AI's William Huggins said the hybrid approach can produce very precise ground-state estimates with more noise than the previous holder of the record for chemical simulations with quantum computing, the variational quantum eigensolver (VQE) algorithm, can tolerate.  ... ' 

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