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Impurities in Semiconductor Enable Qubits That Emit Photons in IR

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GRONINGEN, Netherlands, Oct. 2, 2018 — An international research team has discovered a way to create qubits that emit photons at wavelengths close to those used by telecom providers. Scientists at the University of Groningen, together with colleagues from Linköping University and Norstel AB, constructed a qubit that transmits information on its status at a wavelength of 1100 nm. The researchers said it is likely that the approach they used could be tuned to wavelengths of 1300 to 1500 nm. The qubits were based on silicon carbide crystals in which molybdenum impurities created color centers that could respond to light of...Read full article

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    Published: October 2018
    Glossary
    spin
    Acronym for self-aligned polysilicon interconnect N-channel. A metal-gate process that uses aluminum for the metal-oxide semiconductor (MOS) gate electrode as well as for signal and power supply connectors.
    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.
    Research & TechnologyeducationEuropeLaserssemiconductorsspinUniversity of GroningenNorstel ABLinkoping Universityquantum bitsqubitsquantum InternetCommunicationsquantum opticsoptical fibersEuro News

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