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Low-Loss, All-Fiber System Supports Coupling Between Distant Atoms

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TOKYO, April 3, 2019 — A team of scientists from Waseda University, the Japan Science and Technology Agency, and the University of Auckland developed an integrated, all-fiber coupled-cavities quantum electrodynamics (QED) system, in which a meter-long portion of conventional optical fiber seamlessly and coherently connects two nanofiber cavity-QED systems. A cavity-QED system is a system in which photons and atoms are confined within an optical resonator and interact with each other in a quantum-mechanical manner. Cavity-QED systems have been used as experimental platforms for helping scientists to better...Read full article

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    Published: April 2019
    Glossary
    quantum
    The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the atomic and subatomic scales. It originates from quantum theory, a branch of physics that emerged in the early 20th century to explain phenomena observed on very small scales, where classical physics fails to provide accurate explanations. In the context of quantum theory, several key concepts are associated with the term quantum: Quantum mechanics: This is the branch of...
    quantum optics
    The area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as photons. First observed by Albert Einstein's photoelectric effect, this particle description of light is the foundation for describing the transfer of energy (i.e. absorption and emission) in light matter interaction.
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    Research & TechnologyeducationAsia-PacificWaseda Universityfiber opticsOpticsquantumquantum opticsquantum communicationsCommunicationsquantum computingquantum electrodynamics systemnano

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