Quantum optics seminar
Electric Feedback Cooling of Nanoparticles in a Paul Trap
Mr. Ben Baruch Shultz
Ben-Gurion University of the Negev
Abstract
This is a student seminar!
Zoom link: https://us02web.zoom.us/j/88005868770?pwd=LgHxLte7mbViV9ultWCWxO8IKj3IWg.1
Abstract:
We present the development and implementation of an electric feedback cooling system for levitated nanoparticles in a Paul trap, with the aim of advancing precision control in levitodynamics experiments. A custom-designed end-cap Paul trap was employed to stably confine charged nanoparticles and electric feedback was used to slow their motion and cool them. Optical detection of the particle’s translations in real-time is realized by a homodyne interference scheme of the forward scattered light. Two active feedback techniques were investigated: velocity damping and parametric. Both methods were implemented on a Red Pitaya (RP) FPGA-based platform to meet the stringent requirements for low-latency feedback. This project is part of the roadmap for coherently splitting a massive object.
Zoom link: https://us02web.zoom.us/j/88005868770?pwd=LgHxLte7mbViV9ultWCWxO8IKj3IWg.1
Abstract:
We present the development and implementation of an electric feedback cooling system for levitated nanoparticles in a Paul trap, with the aim of advancing precision control in levitodynamics experiments. A custom-designed end-cap Paul trap was employed to stably confine charged nanoparticles and electric feedback was used to slow their motion and cool them. Optical detection of the particle’s translations in real-time is realized by a homodyne interference scheme of the forward scattered light. Two active feedback techniques were investigated: velocity damping and parametric. Both methods were implemented on a Red Pitaya (RP) FPGA-based platform to meet the stringent requirements for low-latency feedback. This project is part of the roadmap for coherently splitting a massive object.