Quantum Physics News

Mysterious 3D Grid of Quantum “Tornadoes” in Liquid Helium Revealed

August 22, 2014

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Experiment Reveals Mysterious 3D Grid of Quantum Tornadoes in Liquid Helium

A new experiment at the SLAC National Accelerator Laboratory revealed a 3D grid of quantum “tornadoes” inside microscopic droplets of supercooled liquid helium, allowing scientists to see a manifestation of the quantum world on a macroscopic scale for the first time. Menlo Park, California — An experiment at the Department of Energy’s SLAC National Accelerator […]

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Engineers Clear a Path Toward Better Quantum Computers and Nanoscale Sensors

August 5, 2014

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A Path Toward Better Quantum Computers and Nanoscale Sensors

Engineers at the University of Chicago have used a diamond defect called a nitrogen vacancy center to clear a path toward better quantum computers and nanoscale sensors. By carefully controlling the position of an atomic-scale diamond defect within a volume smaller than what some viruses would fill, researchers have cleared a path toward better quantum […]

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Physicists Measure Magnetic Interactions between Single Electrons

July 28, 2014

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Weizmann Physicists Measure Magnetic Interactions between Single Electrons

By using a technique that binds two electrons together so that their spins point in opposite directions, physicists at the Weizmann Institute of Science were able to measure magnetic interactions between single electrons. Imagine trying to measure a tennis ball that bounces wildly, every time to a distance a million times its own size. The […]

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Scientists Demonstrate a Photonic Router for the First Time

July 15, 2014

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Researchers Demonstrate a Photonic Router for the First Time

Scientists from the Weizmann Institute of Science have taken another step forward toward building quantum computers, demonstrating a photonic router for the first time. Weizmann Institute scientists have demonstrated for the first time a photonic router – a quantum device based on a single atom that enables routing of single photons by single photons. This […]

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Physicists Track Quantum Errors in Real Time

July 14, 2014

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Yale Physicists Track Quantum Errors in Real Time

A team of scientists has tackled the first step in quantum error correction, successfully identifying errors as they happen in real time. Scientists at Yale University have demonstrated the ability to track real quantum errors as they occur, a major step in the development of reliable quantum computers. They report their results in the journal […]

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Researchers Demonstrate the Scalability of Quantum Dot Architectures

July 11, 2014

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New Research Could Form the Basis for Future Scalable Quantum Computers

New research from the RIKEN Center for Emergent Matter Science reveals how arrays of electrons trapped in nanoscale circuitry could form the basis for future scalable quantum computers. A single electron trapped in a semiconductor nanostructure can form the most basic of building blocks for a quantum computer. Before practical quantum computers can be realized, […]

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Researchers Test Hollow Optical Fibers for UV Light

July 9, 2014

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Hollow Optical Fibers for UV Light

Scientists at the Max Planck Institute have tested a new type of optical fiber with a hollow core, revealing that this type of optical fiber was able to guide UV laser light without being damaged and with acceptable loss. The new optical waveguides will improve precision investigations in physics, chemistry and life sciences. If you […]

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Physicists Encode One Qubit in Entangled States Distributed Over Several Particles

June 13, 2014

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Quantum Computations on a Topologically Encoded Qubit

Physicists have experimentally encoded one qubit in entangled states distributed over 7 trapped-ion qubits and demonstrate the capability of the code to detect one bit flip, phase flip or a combined error of both, regardless on which of the qubits they occur. In a close collaborative effort, Spanish and Austrian physicists have experimentally encoded one […]

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Researchers Discover “Magic” Ingredient for Quantum Computing

June 12, 2014

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Contextuality Supplies the Magic for Quantum Computation

A newly published study establishes that quantum contextuality is a critical resource for quantum speed-up within the leading model for fault-tolerant quantum computation, magic state distillation. A form of quantum “weirdness” has been found, by researchers at Waterloo’s Institute for Quantum Computing (IQC), to be a key ingredient for building a quantum computer. In a […]

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Physicists Observe Quantum Criticality in a New Class of Materials

June 5, 2014

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A New Discovery of Quantum Critical Points

Physicists have discovered new “quantum critical points” in a class of iron superconductors known as “oxypnictides,” furthering their understanding of quantum criticality. Quantum criticality, the strange electronic state that may be intimately related to high-temperature superconductivity, is notoriously difficult to study. But a new discovery of “quantum critical points” could allow physicists to develop a […]

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Physicists Measure Photons in an Entangled NOON State

June 3, 2014

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Physicists Measure Photons in an Entangle NOON State

Physicists from the University of Toronto have successfully measured multiple photons in an entangled NOON state, overcoming a major challenge in the science of measurement using quantum mechanics and opening the door to the next generation of ultra-precise measurement technologies. For the first time, physicists at the University of Toronto have overcome a major challenge […]

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New Quantum Effect Enables Electrons to Flow Rapidly Through the Interior of Topological Insulators

May 20, 2014

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Princeton Researchers Discovered a New Quantum Effect

Researchers at Princeton University have taken a step forward in the development of a new class of materials, discovering a new quantum effect that enables electrons to dash through the interior of topological Dirac semi-metals with very little resistance. As smartphones get smarter and computers compute faster, researchers actively search for ways to speed up […]

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