ALP seminar: Quantum networking for cryptography, metrology and computing

24 May 2024
Seminars and colloquia
Time
-
Venue
Simpkins Lee Seminar Room
Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU
Speaker(s)
Seminar series
ALP seminar
For more information contact

David Lucas, Clarendon Lab, Oxford

Abstract:
Trapped-ion qubits are one of the leading platforms for quantum computing. Combined with photonic interconnects, trapped-ion processors can form the basis of a quantum network. Our apparatus in Oxford consists of two independent ion traps, separated by 2 metres, linked via a single-photon optical fibre interface. I will describe our recent demonstrations of quantum technological applications in the areas of cryptography, metrology and information processing [1,2,3], as well as preliminary results on distributed quantum computing. I will outline future directions in these areas, as well as in tests of basic physics.

[1] “Experimental quantum key distribution certified by Bell's theorem”, 
D.P.Nadlinger et al., Nature 2022.
[2] “An elementary quantum network of entangled optical atomic clocks”,
B.C.Nichol, R.Srinivas et al., Nature 2022.
[3] “Verifiable Blind Quantum Computing with Trapped Ions and Single Photons”, 
P.Drmota et al., Phys. Rev. Lett. 2024.