En anvendelse av [[Kvantekjemi]]. Se møte [[Gemini Center on Quantum Technology]], [[12024-05-03]]: «Towards Quantum Simulations of Battery Materials and Cells». ![[Pasted image 20240503115053.png]] Han snakker nå om simulering på [[NISQ]]-maksiner, spesifikt [[Variational quantum eigensolver]], som jeg helt har mistet troen på dessverre. ![[Pasted image 20240503114628.png]] «We want to simulate electronic structure (…) Between 50 and 100 good qubits, we can expect quantum supremacy, but this will still still be too small (…) We are looking for ways to couple these (classical) mean field methods to our quantum simulations.» «Can use the noise of the noisy qubits as a resource to simulate noisy spectrums.» (Skjønte ikke helt den.) «We solve the problem in space-time (full solution in both space and time in one shot), and this approach is what was invented invented by Feynman and Kitaev»: ![[Pasted image 20240503115309.png]] ![[Pasted image 20240503115901.png]] Quantinuum vs. IBM: Ion Trap qubits vs Superconducting qubits with error mitigation: ![[Pasted image 20240503115830.png]] «Ion traps are better—but slower.» For this work they simulated the dynamics of 2-3 atoms, but they are tackling 5-10 atoms next (they have some preliminary results already, but they haven’t been published yet).