The Dodd-Walls centre is proud to present a series of seminars hosted by our themes on different topics and everyone is welcome to attend. Wednesday’s seminar is presented by Dr Amita Deb, Postdoctoral Fellow, Department of Physics, University of Otago, DWC Boardroom 320e and will also be available via Zoom.
Title: Electrometers based on Rydberg atoms
When: Date: Wednesday 12 April 1pm (sharp) until 1.55pm
Room: Boardroom 320e, Dodd-Walls Centre, Science III + remote locations via Zoom
Anyone can join from anywhere with the use of a laptop or computer via Zoom.
Zoom Meeting ID: 478-489-695
Electrometers based on Rydberg atoms
Rydberg atoms have electron(s) in highly excited states, and therefore are extremely responsive to electric fields. The field can be that of a neighbouring Rydberg atom or a deliberately applied external source. In this talk, I will present a proposal to implement a miniaturized electric field sensor based on thermal Rydberg atoms in a vapour cell. I will start by briefly outlining the basic physics of Rydberg atoms and how its extraordinarily high polarizability has proved to be a promising tool for quantum manipulations, such as single-photon phase modulations, quantum chemistry and precise electrometry. For electrometric purposes, Rydberg atoms have already proved their worth in RF and microwave domains, which I will describe. I will then discuss near-dc electrometry using Rydberg atoms and how we propose to implement it. It should be mentioned that the idea is expected to form the core of a protected intellectual right in future.