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Tufts is joining a major U.S. Department of Energy (DOE) funded center called the Quantum Systems Accelerator (QSA), led by Lawrence Berkeley National Laboratory. The center hopes to create the next generation of quantum computers and apply them to the study of some of the most challenging problems in physics, chemistry, materials science, and more.

The QSA is one of five new DOE Quantum Information Science research centers announced on Aug. 26, and will be funded with $115 million over five years, supporting dozens of scientists at 15 institutions.

Peter Love, an associate professor of physics, will lead Tufts participation in the project. We have long been interested in using quantum computers for calculations in physics and chemistry, said Love.

A large-scale quantum computer would be a very powerful instrument for studying everything from the structure of large molecules to the nature and behavior of subatomic particles, he said. The only difficulty is that the quantum computers we need dont exist yet.

Quantum computers employ a fundamentally different approach to computing than those existing now, using quantum states of atoms, ions, light, quantum dots or superconducting circuits to store information.

The QSA will bring together world-class researchers and facilities to develop quantum systems that could significantly exceed the capability of todays computers. Multidisciplinary teams across all the institutions will work toward advancing qubit technologythe manner and materials in which information is stored in a quantum state, and other components of quantum computers.

Loves research will focus on developing simulation algorithms in areas such as particle and nuclear physics, which will be run by the new quantum computers. It is important to work hard on the algorithms now, so we are ready when the hardware appears, he said. Love is also part of a National Science Foundation-funded effort to develop a quantum computer and applications to run on it.

Quantum computing is an important and growing area of research at Tufts. Tom Vandervelde, an associate professor in electrical and computer engineering, Luke Davis, an assistant professor of chemistry, and Cristian Staii, an associate professor of physics, are exploring new materials capable of storing qubits.

Philip Shushkov, Charles W. Fotis Assistant Professor of Chemistry, has research focused on theoretical modeling of qubit materials, while Misha Kilmer, William Walker Professor of Mathematics, and Xiaozhe Hu, associate professor of mathematics, study quantum-inspired algorithms relevant to their research in linear algebra. Bruce Boghosian, professor of mathematics, also made some fundamental contributions to quantum simulation in the late 1990s.

Mike Silver can be reached at mike.silver@tufts.edu.

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Tufts Joins Major Effort to Build the Next Generation of Quantum Computers - Tufts Now