In a new paper, scientists seeking better methods for controlling the quantum interactions between light and matter demonstrated a novel way to use light to give electrons a spinning kick. They reported the results of their experiment, which shows that a light beam can reliably transfer orbital angular momentum to itinerant electrons in graphene, on Nov. 26, 2024, in the journal Nature Photonics.

Researchers have successfully created electrically defined quantum dots in zinc oxide (ZnO) heterostructures, marking a significant milestone in the development of quantum technologies.

Infineon Technologies AG, a global leader in semiconductor solutions, and Quantinuum, a global leader in integrated, full-stack quantum computing, today announced a strategic partnership to develop the future generation of ion traps. This partnership will drive the acceleration of quantum computing and enable progress in fields such as generative chemistry, material science, and artificial intelligence.

A team led by Prof. LU Zhengtian and Researcher XIA Tian from the University of Science and Technology of China (USTC) realized Schrödinger-cat state with minute-scale lifetime using optically trapped cold atoms, significantly enhancing the sensitivity of quantum metrology measurement. The study was published in Nature Photonics.

A research team led by Professor Jaedong Lee from the Department of Chemical Physics of DGIST (President Kunwoo Lee) has introduced a novel quantum state and a pioneering mechanism for extracting and controlling quantum information using exciton and Floquet states. Collaborating with Professor Noejung Park from UNIST’s Department of Physics (President Chongrae Park), the team has, for the first time, demonstrated the formation and synthesis process of exciton and Floquet states, which arise from light-matter interactions in two-dimensional semiconductors. This study captures quantum information in real-time as it unfolds through entanglement, offering valuable insights into the exciton formation process in these materials, thereby advancing quantum information technology.

By integrating Arm Cortex processors at cryogenic temperatures, Equal1 is pushing the boundaries of practical, scalable quantum computing.

A research team led by physicists at the Department of Energy’s Pacific Northwest National Laboratory, in collaboration with colleagues at MIT’s Lincoln Laboratory, the National Institute of Standards and Technology, along with multiple academic partners, published their findings to assist the quantum computing community to prepare for the next generation of qubit development.

The rare-earth metal erbium could play a key role in future quantum networks: researchers from MPQ and TU Munich succeeded in spectrally resolving and individually controlling up to 360 erbium ions.

QuTech and Fujitsu have recently announced a partnership to develop a blueprint for a scalable quantum computer. This collaboration is centered around delivering a comprehensive framework for building quantum computers that addresses all major components required for scalability and reliability. According to the announcement, the partnership takes a “full-stack approach,” which encompasses everything from physical qubit modules to high-level error-correction algorithms designed to stabilize quantum computations.

Researchers from Skoltech, the University of Warsaw, and the University of Iceland have demonstrated that by optical means it is possible to excite and stir the exciton-polariton condensate, which emits the linearly polarized light with polarization axis following the stirring direction. The rotation of the linear polarization of the emitted light directly corresponds to the stirring of the polariton spin. The speed of such modulation in time can reach GHz range, thanks to ultrafast dynamics of the polariton system. Remarkably, the team found that this precession occurs only at a specific resonant condition of the external stirring and internal system parameters. The work has been published in Optica.