Location: Room O6 – Orchid Jr 4312 (Level 4)
Abstract: Variational quantum algorithms belong to the class of hybrid classical-quantum computation, leveraging both classical as well as quantum compute resources. These algorithms are widely believed to be promising candidates for first demonstration of useful application of quantum computation in areas such as quantum chemistry, condensed matter simulations, and discrete optimization tasks. Variational algorithms use a parametrized quantum circuit ansatz to estimate the lowest-energy eigenvalue of a Hamiltonian encoding an underlying problem-specific objective function and progress by iterative execution of the parametrized circuit, passing back the result of each computation to a classical optimizer which updates the circuit parameters until a convergence or stopping criteria is satisfied. In real-world quantum hardware, the noise of the device effectively limits the number of circuit operations which can be faithfully executed and degrades the quality of the results of the computation, which affects the convergence of the optimization performed on the classical computer.
In this tutorial, we walk the participants through the practical steps in the execution of a variational quantum algorithm for realistic noisy intermediate-scale quantum (NISQ) hardware. We first introduce an example variational algorithm and provide a reference implementation for a specific problem. We discuss in detail how we can conveniently access quantum computing resources through Amazon Braket and efficiently execute the algorithm on AWS.
For any enquiries, please contact: sterseba@amazon.com
Important Notes to Participants / Pre-requisites:
Participants will be given temporary access to an AWS-hosted development environment to follow the instructor-led demos on their laptop. No software needs to be installed prior or during the tutorial. A web browser and a standard wireless Internet connection are sufficient to participate.
Programme:
| Time | Session |
| 09:30am – 10:15am | Introducing the AWS ecosystem to access quantum computing resources and to execute variational quantum algorithms |
| 10:15am – 10:45am | Navigating the AWS management console and development environment for the tutorial |
| 10:45am – 11:00am | Tea Break |
| 11:00am – 12:30pm | Diving into workflows for the execution of variational quantum algorithms with CUDA-Q on AWS |
