Progression on TEQ experiments

March, 2022

To focus all partners effort for the ultimate TEQ experiment at UoS and at low temperature (300 mK), experimental partners have weekly meetings (Tuesdays at 11 am UK time for 60 minutes duration) to update on electronics, Paul trap and adaptation to cryostat, as well as on the detection mode for the final experiment (based on state estimation and quantum Fisher information metrology tools) based on theoretical expertise within the TEQ consortium. The meeting do regular updats on the following topics:

  1. Configuration of Paul blade trap at UCL with low-noise electronic, at UHV conditions and at room temperature.
  2. Preparation of the cryostat at UoS to receive the Paul trap.
  3. Magnetic levitation experiments at UoS to reach the TEQ objective to test CSL.
  4. Develop and apply to data a single trajectory based detection scheme for the TeQ experiment to avoid the long timescales of thermalization of the particle motion to the environment by QUB.

Comment on progression speed of experiments: Progress with setting up experiments and testing of components is still affected by covid infection of team members, by global shortages and delay in delivery of electrical and mechanical components. A further significant factor reducing the pace of progression is the shortage of helium (liquid and gas) in the UK, which reduces the number of low temperature experiments which we can perform at UoS at the moment. 

Location:  online via zoom.

Meeting dates: 11/01/2022, 18/01/2022, 25/01/2022, 01/02/2022, 08/02/2022, 15/02/2022, 08/03/2022, 22/03/2022, 29/03/2022.

Participants: Catalina Curceanu, Michael Drewsen, Peter Barker, Thomas Penny, Jonthan Gosling, Massimiliano Bazzi, Chistopher Timberlake, Antonio Pontin, Andrea Vinante, Matteo Carlesso, Mauro Paternostro, Hendrik Ulbricht.