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Using noise to enhance quantum computation


   Department of Physics

  Prof Viv Kendon  Applications accepted all year round  Self-Funded PhD Students Only

About the Project

There are several difference models of quantum computing, from the circuit model using quantum gates, through measurement based quantum computing to adiabatic quantum computing and quantum walks. All of the theory behind these models assumes ideal noiseless operations. In all practical quantum hardware, interactions with the environment are unavoidable, and it is a major engineering challenge to mitigate the unwanted effects. In this project, you will investigate quantum walks and quantum annealing, two models where the noise is known to contribute something useful to the computation, by cooling the qubits. By understanding how this works to perform useful computation, the aim is to apply the principles to other quantum computing models, and hence make use of the noise to compute, where possible. This project needs both theoretical and computational skills, to model the quantum computer and noise. There is scope for testing your ideas using real quantum computers, too.


Funding Notes

Fully funded for UK; others please enquire, is possible but not guaranteed, will need approval.

References

https://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.022339
https://iopscience.iop.org/article/10.1088/1367-2630/ab5ca2
https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.2.010338

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