News tagged with quantum gate
Quantum computing: The light at the end of the tunnel may be a single photon
Quantum physics promises faster and more powerful computers, but quantum versions of basic logic functions are still needed to bring this technology to fruition. Researchers from the University of Cambridge and Toshiba Research ...
May 18, 2012 |
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Quantum control protocols could lead to more accurate, larger scale quantum computations
A protocol for controlling quantum information pioneered by researchers at UC Santa Barbara, the Kavli Institute of Nanoscience in Delft, the Netherlands, and the Ames Laboratory at Iowa State University could ...
Apr 04, 2012 |
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Electrical circuits talk to single atoms
(PhysOrg.com) -- If a practical quantum computer is ever to be realized, conventional electronic devices will have to interface with the delicate quantum systems such as atoms or ions in traps or wisps of ...
Mar 06, 2012 |
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Optical circuit enables new approach to quantum technologies
Professor Jeremy O'Brien, Director of the University of Bristol's Centre for Quantum Photonics, and his Japanese colleagues have demonstrated a quantum logic gate acting on four particles of light -- photons. The researchers ...
Jun 24, 2011 |
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All-optical quantum computation, step 1: A controlled-NOT photonic gate
(PhysOrg.com) -- The often counterintuitive quantum world of superposition, entanglement, and tunneling can greatly enhance applications as diverse as communication, information processing, and precision measurement. ...
Jun 24, 2011 |
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Physicists demonstrate teleportation-based optical quantum entangling gate
(PhysOrg.com) -- Taking a step toward the realization of futuristic quantum technologies, a team of physicists from China and Germany has demonstrated a key element – an entangling gate – of a quantum ...
Dec 08, 2010 |
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New evidence for quantum Darwinism found in quantum dots
(PhysOrg.com) -- Physicists have found new evidence that supports the theory of quantum Darwinism, the idea that the transition from the quantum to the classical world occurs due to a quantum form of natural ...
May 10, 2010 |
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Basic quantum computing circuit built
(PhysOrg.com) -- Exerting delicate control over a pair of atoms within a mere seven-millionths-of-a-second window of opportunity, physicists at the University of Wisconsin-Madison created an atomic circuit that may help quantum ...
Feb 25, 2010 |
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Digital Quantum Battery Could Boost Energy Density Tenfold
(PhysOrg.com) -- Physicists theorize that quantum phenomena could provide a major boost to batteries, with the potential to increase energy density up to 10 times that of lithium ion batteries. According to ...
Dec 22, 2009 |
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Researchers simplify fabrication of nano storage, chip-design tools
Advances by the Rice University lab of James Tour have brought graphite's potential as a mass data storage medium a step closer to reality and created the potential for reprogrammable gate arrays that could ...
Sep 09, 2009 |
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Physicist takes a quantum leap
(PhysOrg.com) -- A University of Queensland physicist is seeking answers to a persistent problem throughout human history: how do I compute things? None, however, have had the same impact as what we today know as simply the ...
Jul 06, 2009 |
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Physicists Demonstrate Quantum Memory with Matter Qubits
(PhysOrg.com) -- For the first time, scientists have successfully operated a quantum gate between two remote particles of matter, marking an important step toward the development of a quantum computer. In ...
Jul 03, 2009 |
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'Self-correcting' gates advance quantum computing
(PhysOrg.com) -- Two Dartmouth researchers have found a way to develop more robust “quantum gates,” which are the elementary building blocks of quantum circuits. Quantum circuits, someday, will be used to ...
Mar 12, 2009 |
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Measuring quantum information without destroying it
(PhysOrg.com) -- One of the Holy Grails - so to speak - of science involves building quantum computers that can perform, with accuracy, the computations too advanced and too large for classical computers. While we remain ...
Jan 15, 2009 |
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