English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Understanding collisions between ultracold molecules is crucial for makingstable molecular quantum gases and harnessing their rich internal degrees offreedom for quantum engineering. Transient complexes can strongly influencecollisional physics, but in the ultracold regime, key aspects of their behaviorhave remained unknown. To explain experimentally observed loss of ground-statemolecules from optical dipole traps, it was recently proposed that molecularcomplexes can be lost due to photo-excitation. By trapping molecules in arepulsive box potential using laser light near a narrow molecular transition,we are able to test this hypothesis with light intensities three orders ofmagnitude lower than what is typical in red-detuned dipole traps. This allowsus to investigate light-induced collisional loss in a gas of nonreactivefermionic $^{23}$Na$^{40}$K molecules. Even for the lowest intensitiesavailable in our experiment, our results are consistent with universal loss,meaning unit loss probability inside the short-range interaction potential. Ourfindings disagree by at least two orders of magnitude with latest theoreticalpredictions, showing that crucial aspects of molecular collisions are not yetunderstood, and provide a benchmark for the development of new theories.

Collisions of ultracold molecules in bright and dark optical dipole traps