News tagged with quantum optics
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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Flipping a light switch in the cell: Quantum dots used for targeted neural activation
By harnessing quantum dots—tiny light-emitting semiconductor particles a few billionths of a meter across—researchers at the University of Washington (UW) have developed a new and vastly more targeted ...
Feb 08, 2012 |
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Speed limit on the quantum highway
(PhysOrg.com) -- Physicists at the Max Planck Institute of Quantum Optics have measured the propagation velocity of quantum signals in a many-body system.
Jan 26, 2012 |
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Quantum mechanics enables perfectly secure cloud computing
Researchers have succeeded in combining the power of quantum computing with the security of quantum cryptography and have shown that perfectly secure cloud computing can be achieved using the principles of ...
Jan 19, 2012 |
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China, India to jump forward with Hawaii telescope
China and India are catapulting to the forefront of astronomy research with their decision to join as partners in a Hawaii telescope that will be the world's largest when it's built later this decade.
Space & Earth / Space Exploration
Jan 12, 2012 |
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Flipping an egg carton of light traps giant atoms
(PhysOrg.com) -- In an egg carton of laser light, University of Michigan physicists can trap giant Rydberg atoms with up to 90 percent efficiency, an achievement that could advance quantum computing and terahertz ...
Dec 23, 2011 |
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Optical fiber innovation could make future optical computers a 'SNAP'
Optics and photonics may one day revolutionize computer technology with the promise of light-speed calculations. Storing light as memory, however, requires devices known as microresonators, an emerging technology ...
Dec 14, 2011 |
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Topological matter in optical lattices
Atoms trapped by laser light have become excellent platforms for simulating solid state systems. These systems are also a playground for exploring quantum matter and even uncovering new phenomena not yet seen ...
Nov 28, 2011 |
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Through simple system studies, researchers are unearthing a new quantum state of matter
Researchers at the University of Pittsburgh have made advances in better understanding correlated quantum matter that could change technology as we know it, according to a study published in the Nov. 20 edition of Nature.
Nov 21, 2011 |
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Researchers develop quantum membranes -- a new class of 2D semiconductor
(PhysOrg.com) -- A team of researchers working out of the University of California, Berkeley, has developed an entirely new class of two-dimensional semiconductor made of indium arsenide. Called quantum membranes, ...
Nanotechnology / Nanomaterials
Nov 14, 2011 |
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Putting artificial atoms on the clock
Around the turn of the century, scientists began to understand that atoms have discrete energy levels. Within the field of quantum physics, this sparked the development of quantum optics in which light is ...
Nov 07, 2011 |
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Researchers efficiently extract photons from single semiconductor quantum dots directly into an optical fiber
(PhysOrg.com) -- Researchers from the NIST Center for Nanoscale Science and Technology have led the development of a new technique for efficiently out-coupling photons from epitaxially-grown quantum dots directly ...
Nov 03, 2011 |
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New hybrid technology could bring 'quantum information systems'
(PhysOrg.com) -- The merging of two technologies under development - plasmonics and nanophotonics - is promising the emergence of new "quantum information systems" far more powerful than today's computers.
Oct 27, 2011 |
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New light at the end of the tunnel
(PhysOrg.com) -- An international team of scientists successfully concentrated the energy of infrared laser pulses using a nano funnel enabling them to generate extreme ultraviolet light pulses, which repeated ...
Oct 17, 2011 |
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A microscopic view on quantum fluctuations
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics achieve direct imaging of quantum fluctuations at absolute zero temperature.
Oct 14, 2011 |
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