START Prize for Uros Delic

20 June 2024

I received one of the prestigious START Prizes from the Austrian Science Fund (FWF), supporting my research with 1.2 million Euros over the next 5 years. This will allow us to build experiments that explore nonreciprocal interactions between optically levitated nanoparticles in the quantum regime. Our research will be hosted by the Institute of Quantum Optics and Quantum Information (IQOQI) Innsbruck of the Austrian Academy of Sciences (ÖAW). Read more about the research questions that we will explore here.

Non-Hermitian collective dynamics

05 October 2023

The first experimental study of non-Hermitian dynamics of two nonreciprocally coupled nanoparticles is on arXiv! In this work, we observe PT symmetry breaking by reconstructing the eigenmodes with non-degenerate damping rates. For a larger coupling rate, the system exhibits a collective transition into a mechanical lasing state, where both particles become nonlinear oscillators. Larger arrays of particles will allow us to study nonreciprocal phase transitions or explore novel sensing strategies.

Clean launching of nanoparticles

22 December 2022

Our work on "Dry launching of silica nanoparticles in vacuum" has been published in AIP Advances! In this work we show that we can shake off glass nanoparticles as small as 43 nm in radius (we didn't have smaller particles available!) from PTFE microscope slides. Read more.

Bound by light

26 August 2022: Our paper on "Tunable light-induced dipole-dipole interactions between optically levitated nano-particles" has just been published in Science!

Click here to read our press release. I also recommend reading the Science Perspective by Julen Simon Pedernales  and the Nature news feature written by Davide Castelvecchi.

New Master in the group!

08 July 2022: Congratulations to Livia Egyed, MSc. for her amazing Master thesis defense on "Light-induced dipole-dipole interactions between optically levitated nanoparticles"! Livia will continue with her PhD thesis in the group from October.