Amazon braket announced that it supports hybrid quantum classical algorithms and will access the first European system
At Amazon re: invent 2021 conference, AWS announced the launch of Amazon bracket hybrid job function, which aims to help users set up, monitor and run hybrid quantum classical algorithms efficiently.
Braket is a fully managed quantum computing service designed to help accelerate the scientific research and software development of quantum computing. The company launched Amazon bracket as early as 2019 and went public a year later to provide AWS cloud users with quantum hardware and tools from partner companies rigetti computing, ionq and d-wave systems.
Since then, there have been many changes in quantum computing. Many quantum computing researchers have shifted their focus to the use of so-called hybrid algorithms, that is, the use of classical computers to optimize quantum algorithms. This process is usually similar to training machine learning models. However, establishing and running these hybrid quantum classical - algorithms is a difficult task.

Variational quantum computing is similar to machine learning
Previously, to run these algorithms, in addition to monitoring and visualization tools for analyzing results, developers had to set up and manage infrastructure to run optimization algorithms on classical machines, and then manage integration with quantum computing hardware.
In addition, another great challenge is that quantum processing units are shared and inelastic resources. Users must compete with others to access these resources, which may slow down the execution speed of the algorithm. A single large workload from another user may cause the algorithm to stop running, which may increase the user's total running time by several hours. This is not only inconvenient, but also affects the quality of results, because today's quantum processors (qpus) need to be recalibrated regularly, which may invalidate the progress of hybrid algorithms. At worst, the algorithm fails, wasting budget and time.
Amazon said that with braket hybrid operation, these problems will be solved. Developers can access a fully managed service, which is responsible for the hardware and software interaction between quantum computers and classical computers. At the same time, they can also give priority to access quantum processors to provide higher predictability. Braket will automatically start the necessary resources and close after the job is completed.
There is no need to deploy, configure and manage the classic infrastructure, which makes it easy to iterate experiments and improve algorithms. Users can also set custom indicators for their algorithms, and then use Amazon cloud monitoring cloudwatch. They can visualize the results in near real time.
Amazon said that this service will help make quantum computing more accessible. Developers can now use it as a main tool to understand and improve hybrid algorithms and test its applicability in industry and research.

Braket mixed operation
Amazon bracket hybrid job will charge users according to the resources used by users. The service is available in all AWS regions currently available in Amazon braket.
In addition, at Amazon re: invent conference, AWS announced that Qura and Oxford quantum circuit company (OQC) will join braket service as new hardware providers in the coming months.
Qura recently announced the launch of a 256 bit quantum simulator. Qura machine will be the first quantum computer based on Rydberg atomic technology that can be used in the cloud.
OQC will provide its latest system Lucy, an 8-bit superconducting quantum computer, from February 2022, which will be the first European system connected to braket.
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