News tagged with quantum circuits
Two stopped light pulses interact with each other
(Phys.org) -- For the first time, physicists have experimentally demonstrated the interaction of two motionless light pulses. Because the stopped light pulses have a long interaction time, it increases the ...
May 08, 2012 |
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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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First-ever calculation performed on optical quantum computer chip
(PhysOrg.com) -- A primitive quantum computer that uses single particles of light (photons) whizzing through a silicon chip has performed its first mathematical calculation. This is the first time a calculation ...
Sep 03, 2009 |
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Long predicted but never observed: A new kind of quantum junction
A new type of quantum bit called a "phase-slip qubit", devised by researchers at the RIKEN Advanced Science Institute and their collaborators, has enabled the world's first-ever experimental demonstration ...
Apr 18, 2012 |
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Researchers find possible evidence of Majorana fermions
(Phys.org) -- Researchers working out of Delft University of Technology in the Netherlands have constructed a device that appears to offer some evidence of the existence of Majorana fermions; the elusive particles ...
Apr 13, 2012 |
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An optical diode made with silicon technology can be used for quantum information
(PhysOrg.com) -- Transistors, resistors, capacitors, and diodes. All of these are examples of common electrical circuit elements that can be found on a computer motherboard, for instance. Billions of transistors ...
Mar 23, 2012 |
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Physicists build highly efficient 'no-waste' laser
A team of University of California, San Diego researchers has built the smallest room-temperature nanolaser to date, as well as an even more startling device: a highly efficient, "thresholdless" laser that ...
Feb 08, 2012 |
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Playing ping-pong with single electrons: Research provides important technique for transferring quantum information
Scientists at Cambridge University have shown an amazing degree of control over the most fundamental aspect of an electronic circuit, how electrons move from one place to another.
Sep 21, 2011 |
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Mechanical micro-drum cooled to quantum ground state
Showcasing new tools for widespread development of quantum circuits made of mechanical parts, scientists from the National Institute of Standards and Technology have demonstrated a flexible, broadly usable ...
Jul 06, 2011 |
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New generation of optical integrated devices for future quantum computers
A research group led by scientists from the University of Bristol has demonstrated the quantum operation of new components that will enable compact circuits for future photonic quantum computers.
Mar 01, 2011 |
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Quantum computing research edges toward practicality in UCSB physics lab
(PhysOrg.com) -- An important step -- one that is essential to the ultimate construction of a quantum computer -- was taken for the first time by physicists at UC Santa Barbara. The discovery is published in the current issue ...
Oct 05, 2010 |
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Cold atoms make microwave fields visible
Using clouds of ultracold atoms, a scientific team at the Max Planck Institute of Quantum Optics (Germany) have made microwave fields visible.
Aug 03, 2010 |
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Scientists report first monolithic terahertz solid-state transceiver
Sandia National Laboratories researchers have taken the first steps toward reducing the size and enhancing the functionality of devices in the terahertz (THz) frequency spectrum.
Jun 29, 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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European researchers make breakthrough in developing super-material graphene
(PhysOrg.com) -- A collaborative research project has brought the world a step closer to producing a new material on which future nanotechnology could be based. Researchers across Europe, including the UK's ...
Nanotechnology / Nanomaterials
Jan 19, 2010 |
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