07/26/2021

ESQ Faculty member Markus Aspelmeyer, his group and collaborators succeed in measuring the quantum trajectory of a silica particle trapped in an optical tweezer and control it in real time

Through a collaboration between the University of Vienna, the Austrian Academy of Sciences and TU Wien, it has now been possible to measure a hot glass sphere consisting of about one billion atoms with unprecedented precision and to control it at the quantum level.

Through a collaboration between the University of Vienna, the Austrian Academy of Sciences and TU Wien, it has now been possible to measure a hot glass sphere consisting of about one billion atoms with unprecedented precision and to control it at the quantum level. Its movement was deliberately slowed down until it assumed the ground state of lowest possible energy. The measurement method almost reached the limit set by Heisenberg's uncertainty principle - physics just does not allow for any more precision than that. This was made possible by applying special methods from control engineering to quantum systems. The results have now been published in the scientific journal "Nature".
 

 

 

 

 

 


For more information see:

https://aspelmeyer.quantum.at/details/news/controlling-the-quantum-motion-of-a-levitated-particle-1/?tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=fffd3888fa53614d400d0bda42a2d937

Press release

https://science.apa.at/power-search/6865828006515332084

https://www.nature.com/articles/s41586-021-03602-3

 

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 801110.

ESQ has received funding from the Austrian Federal Ministry of Education, Science and Research (BMBWF).

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