Quantum Devices

Unique Quantum Material Could Enable Ultra-powerful, Compact Computers | Columbia Quantum Initiative

Information in computers is transmitted through semiconductors by the movement of electrons and stored in the direction of the electron spin in magnetic materials. To shrink devices while improving their performance—a goal of an emerging field called spin-electronics (“spintronics”)—researchers are searching for unique materials that combine both quantum properties.

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First Fully Integrated High-Power Laser on a Lithium Niobate Chip, Paving the Way for Quantum Network Applications

Paulson School of Engineering and Applied Sciences (SEAS) in collaboration with industry partners at Freedom Photonics and HyperLight Corporation, have developed the first fully integrated high-power laser on a lithium niobate chip, paving the way for high-powered telecommunication systems, fully integrated spectrometers, optical remote sensing, and efficient frequency conversion for quantum networks, among other applications…

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Magnetic Interactions Could Point To Miniaturizing Quantum Devices

In new research from the U.S. Department of Energy’s (DOE) Argonne National Laboratory, scientists have achieved efficient quantum coupling between two distant magnetic devices, which can host a certain type of magnetic excitations called magnons. These excitations happen when an electric current generates a magnetic field. Coupling allows magnons to exchange energy and information. This kind of coupling may be useful for creating new quantum information technology devices.

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Controlled for First Time, Quantum Phenomenon Could Suggest Avenues for Technology

University of Chicago scientists have been able to create a new kind of quantum object at will in the laboratory: “domain walls.” The discovery can help researchers better understand exotic quantum particles—and could suggest avenues for new technology in the future, such as quantum electronics or quantum memory… “It’s kind of like a sand dune in the desert—it’s made up of sand, but the dune acts like an object that behaves differently from individual grains of sand,” said Ph.D. student Kai-Xuan Yao, the first author of the study…

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QUNNECT Announces Sale of World’s 1st Commercial Quantum Memory

Qunnect, INC., a Quantum Networking company, announces the sale of the world’s first commercial Quantum Memory to Brookhaven National Laboratory. Quantum Memories are critical components for enabling future quantum-secure networks, as they support distributed entanglement communication protocols, and serve as core components in quantum repeaters.

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Research Breakthrough in Entanglement Could Lead to High-Dimensional Encoding of Quantum Information, Future Quantum Devices

Quantum entanglement—or what Albert Einstein once referred to as “spooky action at a distance”— occurs when two quantum particles are connected to each other, even when millions of miles apart. Any observation of one particle affects the other as if they were communicating with each other. When this entanglement involves photons, interesting possibilities emerge, including entangling the photons’ frequencies, the bandwidth of which can be controlled.

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