Approaching the Heisenberg limit

A football is not a quantum particle. There are crucial differences between the things we know from everyday life and tiny quantum objects. Quantum phenomena are usually very fragile. To study them, one normally uses only ...

How to reverse unknown quantum processes

In the world around us, processes appear to follow a certain time-direction: Dandelions eventually turn into blowballs. However, the quantum realm does not play by the same rules. Physicists from the University of Vienna ...

Artificial neurons go quantum with photonic circuits

In recent years, artificial intelligence has become ubiquitous, with applications such as speech interpretation, image recognition, medical diagnosis, and many more. At the same time, quantum technology has been proven capable ...

Single molecules in a quantum movie

The quantum physics of massive particles has intrigued physicists for more than 80 years, since it predicts that even complex particles can exhibit wave-like behaviour – in conflict with our everyday ideas of what is ...

Pushing lithium ion batteries to the next performance level

Conventional lithium ion batteries, such as those widely used in smartphones and notebooks, have reached performance limits. Materials chemist Freddy Kleitz from the Faculty of Chemistry of the University of Vienna and international ...

The 'great smoky dragon' of quantum physics

University of Vienna physicists have, for the first time, evaluated the almost 100-year long history of quantum delayed-choice experiments—from the theoretical beginnings with Albert Einstein to the latest research works ...

Fingerprints of quantum entanglement

Quantum entanglement is a key feature of quantum computing. Yet, how can researchers verify that a quantum computer actually incorporates large-scale entanglement? Conventional methods require a large number of repeated measurements, ...

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