Quantum networking of trapped-ion qubits

Lead Research Organisation: University of Oxford
Department Name: Oxford Physics


Demonstrate simple quantum algorithms across an elementary two-node quantum network. The key research questions are: whether entanglement can be obtained with sufficiently high fidelity across a quantum network for quantum information processing applications; whether entanglement can be purified across such a network; whether protocols such as "blind quantum computing" can be demonstrated. The student will use the UK's first quantum network apparatus to address these research questions, and build up new quantum engineering techniques such as dual-species quantum logic to enable the research.

Research areas:
Quantum technology / ICT / atomic physics


10 25 50
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Ballance TG (2018) A short response time atomic source for trapped ion experiments. in The Review of scientific instruments

Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/R512333/1 01/10/2017 30/09/2021
1947212 Studentship EP/R512333/1 01/10/2017 31/03/2021 Bethan Nichol
Description The key objectives of the first stage of this award were to acheive high rate high fidelity entaglement between 2 ion trap nodes. We have recorded the best results by both these metrics compared to any other solid state system. Our final published results are 94% fidelity entanlement at a rate of 182 Hz.
Exploitation Route The next stage is to try and increase the fidelity of this operation as in order to be useful for quantum computing operations we need to acheive higher than 99% fidelity.
Sectors Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software),Energy,Environment,Financial Services, and Management Consultancy,Government, Democracy and Justice,Security and Diplomacy

Description spin out from the oxfor dion trapping group which will focus on microwave trap manufacture 
Year Established 2019 
Impact collaboration on a modular vacuum system
Description Open day 
Form Of Engagement Activity Participation in an open day or visit at my research institution
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Undergraduate students
Results and Impact PHd open day which sparked alot of potential candidates interest in the field of quantum computing
Year(s) Of Engagement Activity 2019