Analysing quantum systems with randomised measurements

Understand

Measurements with randomly chosen settings determine many important properties of quantum states without the need for a shared reference frame or calibration.

• They naturally emerge in the context of quantum communication and quantum computing when dealing with noisy environments, and allow the estimation of properties of complex quantum systems in an easy and efficient manner.
• In this review, we present the advancements made in utilising randomised measurements in various scenarios of quantum information science.
• We describe how to detect and characterise different forms of entanglement, including genuine multipartite entanglement and bound entanglement.