IQOQI / M. R. Knabl

Today, quantum physicist Peter Zoller receives the Norman F. Ramsey Prize in Fort Lauderdale, Florida. The award is being presented by the American Physical Society for the first time this year for outstanding scientific achievements in the field of atomic physics and precision measurement.

Pixabay/Gert Altmann

A team of physicists from ICTP-Trieste and IQOQI-Innsbruck has come up with a surprisingly simple idea to investigate quantum entanglement of many particles. Instead of digging deep into the properties of quantum wave functions - which are notoriously hard to experimentally access - they propose to realize physical systems governed by the corresponding entanglement Hamiltonians. By doing so, entanglement properties of the original problem of interest become accessible via well-established tools. This radically new approach could help to improve understanding of quantum matter and open the way to new quantum technologies.

String of 20 single atoms

Entanglement is of central importance for the new quantum technologies of the 21st century. A German-Austrian research team is now presenting the largest entangled quantum register of individually controllable systems to date, consisting of a total of 20 quantum bits. The physicists in Innsbruck, Vienna and Ulm are pushing experimental and theoretical methods to the limits of what is currently possible.

Physicists compared the photon interference produced by entangled and non-entangled barium atoms.

A team led by experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

A new method allows scientists to trap atoms between steep walls. (Credit: N.Beier/JQI)

A new landscape promises to bring ultracold atomic neighbors closer than ever before. A corresponding concept was recently published by a team of scientists from the Joint Quantum Institute (JQI) and the Institute of Quantum Optics and Quantum Information (IQOQI).

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