March 5, 2024, Science Highlights

Two-qubit-operation analysis

Robust atom-photon gate for quantum information processing

Physical Review A (2024)

In this paper, researchers suggest a method for performing two-qubit operations between 1) a photon and 2) an atom trapped in a cavity. The interaction between the two is mediated by a cavity and a type of interferometer called a Mach-Zehnder interferometer. In the setup, the ground and excited states of the atom in the cavity are doubly degenerate: two states in each energy level participate in the interaction with the flying photon.

The researchers analyzed potential errors in this gate setup and demonstrated that the setup is more resilient to experimental errors compared to previous methods, resulting in higher fidelity.

The group’s work will help improve the development of technologies for quantum computing and communication.

The paper authors are Omar Nagib, Preston Huft, Akbar Safari, Mark Saffman, who did their work at the University of Wisconsin–Madison.

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September 1, 2026, Science Highlights
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August 21, 2026, Science Highlights
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August 18, 2026, News and Features
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August 11, 2026, News and Features
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Researchers at Argonne and the University of Illinois Urbana-Champaign demonstrate a method for generating stable ripples in magnetic materials called magnons. The work opens avenues for information processing in microelectronics and quantum devices. Read More
August 4, 2026, In the News
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From the U.S. Department of Energy: Q-NEXT researchers map the variation in materials to the atom level to scale up silicon qubits Read More
July 28, 2026, Science Highlights
Color centers in high-purity diamond

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July 13, 2026, News and Features
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