Recently in glossy journals

Engineering topological states in atom-based semiconductor quantum dots

Very nice work implementing the SSH / Hubbard model using quantum dots, forming a platform for studying the interplay between band topology and quantum interactions. The accompanying press release from the spin-off company (Silicon Quantum Computing) is unfortunately pure hype, however. This is not a molecular simulation - it is an implementation of a model. A neat example of analogue quantum simulation, but this is not a general-purpose reprogrammable integrated quantum circuit. 

Quantum advantage in learning from experiments

 

An exponential quantum advantage for quantum machine learning! The fine print is that the advantage is for learning from quantum data.

An on-chip photonic deep neural network for image classification

 

A photonic neural network that uses optoelectronics to implement nonlinear activation functions. "Direct, clock-less processing of optical data eliminates analogue-to-digital conversion and the requirement for a large memory module, allowing faster and more energy efficient neural networks for the next generations of deep learning systems."