Multi-QPU quantum algorithms for quantum dynamics simulations

Quantum computers have the potential to perform computational tasks which are impossible to solve on classical computers. One natural application of quantum computing is to use them for predicting how quantum mechanical systems (e.g., models of quantum magnetism or chemical molecules) evolve in time. However, existing quantum computers – so-called noisy intermediate-scale quantum (NISQ) devices – are not yet powerful enough to generally outperform classical computers. Scaling up is possible by connecting multiple quantum processing units (QPUs) together.

Optical approaches to modular quantum computers

Quantum computing technology research has been a fast-growing academic field since the start of the century. In recent years, it has become apparent that in order to perform large, useful computations on a quantum computer, one must link multiple smaller quantum computers via a quantum communication channel, much in the same way that modern classical computers link many processor cores.