Realising a logical qubit within a microtrap ion shuttling architecture'

Lead Research Organisation: University of Sussex
Department Name: Sch of Mathematical & Physical Sciences

Abstract

Quantum computing at heart comprises two juxtaposed aims: the ability to sufficiently isolate physical systems
such that they show quantum behaviour, and the ability to interact with these systems in a controlled way.
Different physical systems lend themselves more to one or the other of these objectives. Charged atomic particles
(ions) suspended in electromagnetic `traps' are naturally well isolated, and for small numbers of ions they can
be manipulated very reliably. The challenge of ion trapping arises when trying to scale up the number of ions to
realise a useful quantum computer which handles more data (more qubits). Typical means of controlling ions,
precisely aligned lasers, aren't feasible on the large scale - we expect billions of bits in a modest computer today,
no amount of PhD students could align that many lasers! The Quantum Technology lab at the University of
Sussex works toward addressing this issue of scalability in trapped ion computers. Scalable quantum computers
present a new problem to surmount: compounding errors. Quantum error correction has a rich theory but
experimentally is in a nascent stage. Logical qubits are units of quantum information encoded over a number of
physical systems so as to protect against errors, and will form the true building blocks of quantum computers.
The main aim of this project will be realising a logical qubit in a trapped ion system.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/P510270/1 31/03/2016 30/08/2022
2075664 Studentship EP/P510270/1 24/09/2017 30/03/2022 Alexander Philip Owens