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Re­search Awards: Highlighting Two Special STRUC­TURES Breakthroughs

A curved and expanding spacetime has been simulated in a Bose-Einstein condensate.

Curved Spacetime in the Lab

We are deligthed to announce that re­search from STRUCTURES' Comprehensive Project (CP 4: Quan­tum Structure and Dynamics) carried out by Celia Viermann and the group of Markus Oberthaler, in collaboration with external member Stefan Flörchinger, has made this year's Physics World list of Top 10 Breakthroughs of the Year 2023. In their laboratory experiment, the researchers have succeeded in realizing a quan­tum simulation of a curved and expanding spacetime. Within an ultracold quan­tum gas, they were able to simulate an entire family of curved universes that can be manipulated, allowing to investigate and comapre different cosmological scenarios with the predictions of a quan­tum field theo­re­ti­cal model (see also this earlier news item for more details). The re­search results were published in Nature (see Viermann et al., 2022).

Topological analysis of a vector field with discontinuity exhibiting sliding flow.
Visualization of Discontinuous Vector Field Topology

We are delighted to announce that a study from STRUCTURES' CP 6 (Networks and Ma­chine Learning) carried out by Egzon Miftari, Filip Sadlo and Daniel Durstewitz has been awarded one of the prestigious Best Paper Award of the IEEE VIS 23, the premier conference for visualization and visual analytics. The award is considered one of the most renowned awards for publications in this field of research. In their work, the researchers extend vector field topology to discontinuous but piecewise-continuous vector fields, by providing extraction techniques for Filippov systems and extending these systems with non-unique transport. This enables visualizing and exploring the behaviors of complex flow with discontinuities, which is extremely important in many engineering and application fields. An overview of this work can be found in this year's CP 6 project report by Egzon Miftari and Filip Sadlo featured in STRUC­TURES News (October 2023), page 3.


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