The next radically different means of information processing will be quantum computing, which researchers say will use the principles of quantum mechanics to perform complex calculations in a fraction of the time needed by the world’s fastest supercomputers.
A paper published recently in Physical Review Letters (Nov. 4 issue) has proposed an experimentally realizable circuit and an efficient scheme to implement scalable quantum computing. The ability to scale up the technology from the one or two-qubit experiments that are common in the laboratory to systems involving many qubits is what will finally make it possible to actually build a quantum computer.
"Scalable quantum computing with Josephson charge qubits," was written by Franco Nori of the University of Michigan Physics Department and the Institute of Physical and Chemical Research (RIKEN) and two colleagues, J.Q. You from RIKEN and J.S. Tsai from RIKEN and the NEC Fundamental Research Laboratories.
Judy Steeh | EurekAlert!
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DESY and MPSD scientists create high-order harmonics from solids with controlled polarization states, taking advantage of both crystal symmetry and attosecond electronic dynamics. The newly demonstrated technique might find intriguing applications in petahertz electronics and for spectroscopic studies of novel quantum materials.
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The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.
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Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.
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