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Atomic and Laser Physics
Credit: Jack Hobhouse

Katie Challoner

Graduate Student

Research theme

  • Quantum information and computation

Sub department

  • Atomic and Laser Physics

Research groups

  • Ion trap quantum computing
catherine.challoner@physics.ox.ac.uk
Clarendon Laboratory, room 145.10.16
Ion-Cavity Networks
  • About

I am a DPhil student in the ion trap quantum computing group working on the ion-cavity networks experiment, led by Dr Joseph Goodwin. 

Our aim is to build a scalable network of optical cavity-integrated ion traps for fast remote entanglement generation and quantum computing. This will consist of a network of many ion trap network nodes connected together via optical fibres, where single photons mediate the entanglement between ions in separate traps. Each ion trap will incorporate an optical microcavity, to offer enhanced photon collection efficiency from the ions via the Purcell effect. This increased photon collection efficiency should allow for greatly improved remote entanglement rates in ion trap networking.

I am currently developing and characterising the optical cavities to be integrated into our traps, aiming for high finesse and and strong coupling to the ions.

I studied theoretical physics as an undergraduate at the University of Nottingham, and mathematics as a postgraduate at the University of Oxford. I have undertaken experimental internships both in Germany and the UK. I was funded by the Max Planck School of Photonics to undertake an internship with the quantum coherent electron dynamics group in the laser physics department at FAU, Germany in 2022. I also undertook an internship with the ion trap group in Oxford before starting my DPhil.

Research interests

Ion Traps
Quantum Networking
Cavity Quantum Electrodynamics

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