Hi all,
Tim will talk at our Valentine's Day group meeting special tomorrow. See
below for his title and abstract.
All the best,
Ian
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Title: Superconducting circuit design augmented with Bayesian optimization
Abstract: Superconducting qubits are electrical circuits comprising
inductors, capacitors, and Josephson junctions. Although circuit parameters
may in principle assume a wide range of values, existing architectures
generally span only a small subset of the available design space, and
design variations are often based largely on experience and engineering
intuition. However, future circuit architectures – such as radically new
qubit designs or many-body couplers for adiabatic quantum computing – will
likely extend beyond an intuitive regime. Towards this end, we have
developed a numerical search engine that screens the parameter design space
to achieve circuits with desired spectral properties. The engine performs
Bayesian optimization on a graphical model of arbitrary circuits with
several nodes. In the first part of the talk, I will give a brief
introduction to superconducting circuits. I will then move on to describe
our algorithm and present first search results for a many-body coupler. At
the end, I would like to pose some challenges of the optimization problem
in our approach and ask for feedback from the group.
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