News tagged with quantum mechanics
Related topics: quantum computing , physical review letters , quantum physics , quantum information , quantum state
New Amplifier Pushes the Boundary of Quantum Physics
(PhysOrg.com) -- If powerful new quantum computers are to reach their enormous potential, they will need amplifiers capable of transmitting signals so weak they consist of a single photon. In the May 6 edition ...
May 05, 2010 |
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Physicists set guidelines for qubit candidates
(PhysOrg.com) -- To build a quantum computer, it's essential to be able to quickly and efficiently manipulate the quantum states of qubits. The qubits, which are the basic unit of quantum information, can be composed of many ...
May 04, 2010 |
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Controlling the interaction between light and matter
(PhysOrg.com) -- "One of the most exciting things about this is that it gives us nice, clean control over the interaction between light and matter," William Kelly tells PhysOrg.com. "Our technique has the potential to giv ...
Apr 30, 2010 |
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NIST Develops 'Dimmer Switch' for Superconducting Quantum Computing
(PhysOrg.com) -- Scientists at the National Institute of Standards and Technology have developed the first “dimmer switch” for a superconducting circuit linking a quantum bit (qubit) and a quantum bus—promising ...
Apr 27, 2010 |
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Random, but not by chance: A quantum random-number generator for encryption, security
Researchers have devised a new kind of random number generator, for encrypted communications and other uses, that is cryptographically secure, inherently private and - most importantly - certified random by ...
Apr 14, 2010 |
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Record measurement of extremely small magnetic fields
Researchers at the research center QUANTOP at the Niels Bohr Institute at the University of Copenhagen (Denmark) have constructed an atomic magnetometer, which has achieved the highest sensitivity allowed ...
Apr 12, 2010 |
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NIST Racetrack Ion Trap is a Contender in Quantum Computing Quest (w/ Video)
(PhysOrg.com) -- Physicists at the National Institute of Standards and Technology have built and tested a device for trapping electrically charged atoms (ions) that potentially could process dozens of ions ...
Mar 31, 2010 |
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World record: German supercomputer simulates quantum computer
A quantum computer could provide an enormous improvement in the processing speed of existing computers. However, as yet they only exist in the laboratory in the form of small prototypes with a capacity of a few bits. They ...
Mar 31, 2010 |
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NSF grant to IU researcher funds study of 'fundamental length'
The National Science Foundation has awarded a $221,660 grant to Indiana University faculty member Amit Hagar for the first comprehensive study of fundamental length, a concept that has intrigued theoretical physicists off ...
Mar 23, 2010 |
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Discovery could pave the way for quantum computing
(PhysOrg.com) -- Two experimental systems at the forefront of modern physics research -- a single trapped ion and a quantum atomic gas -- have been combined for the first time by researchers at Cambridge. ...
Mar 18, 2010 |
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Physicists Show Theory of Quantum Mechanics Applies to the Motion of Large Objects
(PhysOrg.com) -- Researchers at UC Santa Barbara have provided the first clear demonstration that the theory of quantum mechanics applies to the mechanical motion of an object large enough to be seen by the ...
Mar 17, 2010 |
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Quantum Sensor Developed by LSU Researcher Breaks New Limits
(PhysOrg.com) -- Researchers at Louisiana State University have invented an optical sensor that surpasses a quantum limit to sensitivity previously believed to be unbeatable. The breakthrough has a broad array of applications, ...
Mar 16, 2010 |
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Can we detect quantum behaviour in viruses?
(PhysOrg.com) -- The weird world of quantum mechanics describes the strange, often contradictory, behaviour of small inanimate objects such as atoms. Researchers have now started looking for ways to detect quantum properties ...
Mar 11, 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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Photons led astray: Investigating the random motion of quantum particles
(PhysOrg.com) -- Life would sometimes be so much easier if we were quantum particles. For example, if we were trying to find our way out of a strange town allowing chance telling us which way to go at every ...
Feb 23, 2010 |
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