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quantum mechanics News
Quantum Physics Enables Secure Cloud Computing
VIENNA, Feb. 2, 2012 — By combining quantum computing with quantum cryptography, a perfectly secure cloud computing environment was achieved, addressing one of the many challenges facing the current trend of storing information remotely.
Seeing Quantum Mechanics with the Naked Eye
CAMBRIDGE, England, Jan. 11, 2012 — A new semiconductor chip converts electrons into a quantum, light-emitting state, yet is large enough to see by the naked eye, a development that could lead to a new generation of ultrasensitive gyroscopes.
Let There Be Light...In a Vacuum
GOTHENBURG, Sweden, Nov. 17, 2011 — The quantum mechanical principle which states that a vacuum is not empty space, but instead teeming with particles that flit in and out of existence, has been observed for the first time as photons were coaxed to leave this virtual state and...
Object Cooled to Quantum Ground State with Laser Light
PASADENA, Calif., Oct. 12, 2011 — California Institute of Technology (Caltech) researchers, in collaboration with a team from the University of Vienna, have cooled a miniature mechanical object to its lowest possible energy state — its quantum ground state — using laser...
Record Set for Cesium Atom Entanglement
COPENHAGEN, Denmark, Aug. 22, 2011 — A record for maintaining the entanglement of the spins of two gas clouds of cesium atoms for up to an hour has been set by researchers from Niels Bohr Institute (NBI) at the University of Copenhagen. Entanglement, a key component in quantum...
Optical Circuit Enables New Quantum Tech Approach
BRISTOL, England, June 29, 2011 — A fundamental building block for quantum computing that could soon be employed in a range of quantum technologies has been demonstrated. This quantum logic gate, acting on four photons, could lead to secure communications, precision measurement and...
Two-Slit Interferometer Experiment Gets Makeover
TORONTO, June 9, 2011 — By applying a modern measurement technique to the historic two-slit interferometer experiment, scientists soon may be able to measure reality without distorting it. Quantum mechanics tells us that a tree falling in a forest with no one there...
Electron-Guiding Mimics Optical Fiber Waveguides
GARCHING, Germany, May 12, 2011 — A new technique that resembles the guiding of light waves in optical fibers has been used to efficiently guide slow electrons purely by electric fields for the first time. The achievement involves guiding the electrons by applying a microwave...
It’s high “NOON” for microwave photons
SANTA BARBARA, Calif. – An important milestone toward the realization of a large-scale quantum computer and further demonstration of a new level of the quantum control of light were accomplished by a team of scientists at the University of California, Santa Barbara (UCSB),...
Photons for quantum computing
GAITHERSBURG, Md. – A reliable source of photons for quantum computers could be a step closer to realization, thanks to scientists at the National Institute of Standards and Technology (NIST) who have found that calculations impossible or impractical to achieve with...
Circuit Sets Record Beating Microscopic Drum
BOULDER, Colo., March 21, 2011 — An electrochemical circuit in which microwaves communicate with a vibrating mechanical component 1000 times more vigorously than has previously been demonstrated could one day control the motion of large objects at the quantum scale. ...
Switcher Takes Quantum Communication to New Level
EVANSTON, Ill., March 14, 2011 — The first all-optical switch suitable for single-photon quantum communications has been developed at Northwestern University. The switching device raises quantum communication to a new level, representing a step toward building a network that takes...
NIST Advances Single Photon for Quantum Computers
GAITHERSBURG, Md., Jan. 21, 2011 — Researchers working at the National Institute of Standards and Technology (NIST) have brought science closer to creating reliable sources of photons for the long-awaited quantum computer. In principle, quantum computers can perform calculations that...
Fahrenheit -459: Neutron Stars and String Theory
DURHAM, N.C., Dec. 30, 2010 — Ultrachilled atoms trapped in a "bowl" made of laser light and then placed in a magnetic field have allowed scientists to measure the viscosity of a gas often considered to be the sixth state of matter. The measurements verify that this gas can be...
Physicists Win MacArthur Grants
ITHACA, N.Y., & CAMBRIDGE, Mass., Sept. 28, 2010 — An optical physicist at Cornell University working to develop silicon-based devices that harness the information-processing capabilities of light and an MIT physicist whose research links the worlds of quantum mechanics and astronomy were named...
Quantum Dice Generate Truly Random Numbers
ERLANGEN, Germany, Sept. 13, 2010 — In classical physics every event can be explained in mathematical terms, but researchers at the Max Planck Institute for the Physics of Light have reportedly constructed a device that works on the principle of true randomness. With the help of...
Physicists Confirm Born’s Rule
INNSBRUCK, Austria & WATERLOO, Ontario, Canada, July 22, 2010 — Using a single-photon source, Austrian and Canadian quantum physicists said they ruled out the existence of higher-order interferences experimentally and confirmed an axiom in quantum physics: Born’s rule.
Solid-State Quantum Memory for Light
CANBERRA, Australia, June 25, 2010 — Using a technique pioneered to stop and control light from a laser by manipulating electrons in a crystal cooled to -270 degrees Celcius, a team from the Australian National University (ANU) say they have developed the most efficient quantum memory...
Ignacio Cirac Wins Catalan Culture Award
GARCHING, Germany, April 23, 2010 — Professor Ignacio Cirac, director at the Max Planck Institute of Quantum Optics and leader of the Theory Division, has been honored with the National Culture Award from Catalonia (Premi Nacional de Pensament i Cultura Científica). Born in the...
Ion Trap for Quantum Computing
GAITHERSBURG, Md., April 7, 2010 — Physicists at the National Institute of Standards and Technology (NIST) have built and tested a device for trapping electrically charged atoms (ions) that potentially could process dozens of ions at once with the most versatile control of any trap...
Diamond Properties Speed Quantum Computing
BOCHUM, Germany, March, 22, 2010 – Another decisive step forward in the development of quantum computers has been successful. For the first time, researchers at Ruhr University and at the Universities of Stuttgart and Texas at Austin in the US have placed two nitrogen atoms at a...
Viruses Probed for Quantum Behavior
GARCHING, Germany, March 16, 2010 – Typically, quantum mechanics studies the behavior of energy and matter at the atomic scale, but a German-Spanish research group has begun looking for ways to detect quantum pr...
Quantum Computing Circuit Created
MADISON, Wis., March 2, 2010 – In a move that may help quantum computing become a reality, physicists have created an atomic circuit by exerting delicate control over a pair of atoms within a mere seven-millionths-of-a-second window of opportunity. Quantum computing...
Cold atoms + lasers = synthetic magnetic field
GAITHERSBURG, Md. – Thanks to lasers, researchers have persuaded ultracold, neutral atoms to do something new: respond as if they were charged particles to a magnetic field that isn’t there. This synthetic magnetic field will help scientists create new states of matter...
Atom Interferometer Tests Redshift
BERKELEY, Calif., Feb. 19, 2010 - While airplane and rocket experiments have proved that gravity makes clocks tick more slowly – a central prediction of Albert Einstein’s general theory of relativity – a new experiment in an atom interferometer measures this slowdown 10,000 times...
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May 2024
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