Quantum Digital Simulation
We have been studying how next generation scalable quantum devices could be used to perform computations that solve specific physics and materials problems. In particular, we are investigating a possible early use of quantum devices in predicting the behaviour of quantum materials. Our simulation scheme aims to enhance an existing, successful method for investigating strongly correlated quantum materials called “non-equilibrium Dynamical Mean Field Theory”. This scheme proposes a hybrid quantum-classical simulator, made up of a quantum co-processor, with only a few tens of qubits, and a classical simulator component.
So far, we have shown that it should be possible to outperform purely classical simulations with quantum co-processors. In a recent paper, we concluded that current NQIT efforts to develop scalable quantum computing technologies have the potential to outperform classical DMFT simulations in the near future .