Russia has developed a 4-bit quantum computing prototype

The Russian state-owned company Rosatom said in a statement that scientists from the Russian Quantum Center and the P.N. Lebedev Institute of Physics of the Russian Academy of Sciences have developed a trapped ion quantum computing prototype, code-named Onions. The prototype was developed as part of the quantum computing roadmap implemented by Rosatom.

Russian researchers have developed a system consisting of 2 ququarts (representing 4 states), which is equivalent to 4 qubits. Qubits representing 3 states (qutrit) and 4 states (ququart) are collectively called qudit.

They used the original qudit technology to build a system consisting of four qubits. During the experiment, the researchers captured two ions in a vacuum chamber and used lasers to perform a set of single-qubit operations, two-qubit operations, and entanglement of two particles (Melmer-Sorenson). Therefore, it is possible to show that the quality of operation between qubits connected in ququart exceeds the quality of operation for independent particles, which will help to provide higher quality quantum algorithm implementation in the future.

Ruslan Yunusov, Director of Rosatom’s Quantum Technology Project Office, said: “For us, this is the first major achievement of our quantum computing roadmap. By the end of 2024, a cloud access function will be built on this basis. A universal quantum computer. Today, the Ion platform shows some of the most interesting results. This is particularly noteworthy because 5 years ago, Ion was not considered a priority for quantum computing development."

As part of the implementation of the quantum computing roadmap, Rosatom acts as the integrator and coordinator of the interaction between the country's leading research centers and technology companies.

The quantum computing development roadmap was released in June 2020. The total funding for related activities in 2020-2024 is required to reach 23.66 billion rubles. Of which 13.25 billion rubles are allocated from the federal budget. Other sources of funds 10.4 billion rubles. Rosatom will provide 1.5 billion rubles of extra-budgetary funds to support the development and use of quantum computing.

Rosatom Digital Director Ekaterina Solntseva said: “In 2021, Rosatom allocated more than 6 billion rubles (over 80 million US dollars) for the development of quantum technology and the creation of necessary research infrastructure, including the purchase of equipment and construction of the A batch of laboratories. Further work will continue according to the roadmap: by 2024, a total of more than 23 billion rubles ($310 million) of budget and extrabudgetary funds will be allocated for the manufacture of quantum computers."

 link:[1]https://interfax.com/newsroom/top-stories/73493/

       [2]https://www.gamingdeputy.com/a-universal-quantum-computer-based-on-ions-has-been-created-in-russia/

       [3]https://techartica.com/russia-has-built-a-quantum-computer-onions-which-is-a-quantum-computer/