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Nanotechnology Now – Press Release: Scientists lead to scalable quantum simulation on photonic chips: A system that uses photonic-based synthetic dimensions could be used to help explain complex natural phenomena

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Home > press > Scientists lead to scalable quantum simulations on photonic chips: Systems that use photonic-based synthetic dimensions can be used to help explain complex natural phenomena

A new system developed by researchers at the University of Rochester allows them to perform quantum simulations in a synthetic space that mimics the physical world by controlling the frequency, or color, of the quantum entangled photons over time.  CREDIT University of Rochester Illustration / Michael Osadciw
A new system developed by researchers at the University of Rochester allows them to perform quantum simulations in a synthetic space that mimics the physical world by controlling the frequency, or color, of the quantum entangled photons over time. CREDIT University of Rochester Illustration / Michael Osadciw

Abstract:
Scientists have made an important step toward developing computers powerful enough to simulate complex natural phenomena at the quantum level. While this type of simulation is too complex or completely impossible for classical computers to handle, photonics-based quantum computing systems can provide a solution.

Scientist approaching scalable quantum simulation on photonic chip: A system that uses photonic-based synthetic dimensions can be used to help explain complex natural phenomena

Rochester, N.Y. | Posted on June 30, 2023

A team of researchers from the University of Rochester’s Hajim School of Engineering & Applied Sciences developed a new chip-scale quantum optical simulation system that could help make such a system feasible. The team, led by Qiang Lin, a professor of electrical and computer engineering and optics, published their findings in Nature Photonics.

Lin’s team ran simulations in a synthetic space that mimicked the physical world by controlling the frequency, or color, of the quantum entangled photons over time. This approach differs from traditional photonics-based computational methods in which the path of the photons is controlled, and also drastically reduces the physical footprint and resource requirements.

“For the first time, we were able to produce quantum correlated synthetic crystals,” said Lin. “Our approach significantly expands the dimensions of synthetic space, allowing us to perform simulations of some quantum-scale phenomena such as the random walk of quantum entangled photons.”

The researchers say that this system could serve as a basis for more complicated simulations in the future.

“Although the simulated system is well understood, this proof-of-principle experiment demonstrates the power of this new approach for improving simulation and more complex computational tasks, something we are eager to investigate in the future,” said Usman Javid ’23 PhD (optics), lead author of this study.

Other co-writers from Lin’s group include Raymond Lopez-Rios, Jingwei Ling, Austin Graf, and Jeremy Staffa.

The project is supported with funding from the National Science Foundation, the Joint Office of Science and Technology of the Defense Threat Reduction Agency for Chemical and Biological Defense, and the Defense Advanced Research Projects Agency.

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Contact:
Luke Auburn
Rochester University

Cell: 5854903198

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