Towards the third generation of continuous variable quantum repeaters
Speaker: Matthew Winnel
Affiliation: University of Queensland
Abstract
Quantum repeaters can speed up the rate of long-distance quantum communication by overcoming photon loss and channel imperfections. In this talk, I will focus on continuous-variable (CV) protocols which utilise infinite-dimensional systems and encode quantum information into the quadratures of light. I will present a new CV repeater protocol based on entanglement purification and entanglement swapping (classified as first generation). I will also introduce a new approach for the third generation of CV repeaters which uses CV quantum error correction (for example, cat codes or GKP codes) to correct both loss and operational errors. The third generation offers extremely high rates since it only needs one-way signalling, just like classical repeaters.
About Physics Seminars
The weekly Physics Seminar series focuses on a broad range of physics research within SMP, along with frequent presentations from visiting researchers. Seminars are usually scheduled for 1.00pm on Tuesdays.
The talks are typically more specialised than a colloquium but are often attended by staff and PhD students across a broad range of areas. Speakers are thus encouraged to include introductory material in the talks.
All SMP researchers and HDR students are encouraged to speak. Please email Lewis Williamson to register your interest.
The seminars are open so there is no need to register your attendance.
Venue
https://uqz.zoom.us/j/94116861984