Novotny, Lukas

Date:   Thursday, June 4, 2020
Time:   10:00
Place:   scheduled Zoom meeting
Host:    Klaus Ensslin

Levitodynamics

Lukas Novotny
ETH Zurich

We aim at generating macroscopic quantum superpositions using levitated nanoparticles in ultrahigh vacuum. Using both active and passive feedback techniques we cool the particle’s center-of-mass temperature to mean quantum occupation numbers of n = 4 and demonstrate the signature of the quantum ground state in the spectrum of the scattered light. The vacuum-trapped nanoparticle is an ideal model system for studying non-equilibrium processes, nonlinear dynamics and ultrasmall forces.