Swirling, persistent vortices can be created in superfluid helium. Generally no atoms sit at the eye of these miniature hurricanes. Things might be different in condensates of ultracold atoms. Theorists at the Joint Quantum ...
Quantum Physics
Dec 5, 2013
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(Phys.org) —Topology—the understanding of how things are connected—remains abstract, even with the popular example of doughnuts and coffee cups. This concept, esoteric as it appears, is also neat because it is the basis ...
Optics & Photonics
Oct 21, 2013
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(Phys.org) —In "Harry Potter and the Sorcerer's Stone" (JK Rowling, 1997), Harry, Ron, and Hermione encounter a massive stone chessboard, one of many obstacles in their path. To advance, they must play, and win. Although ...
Quantum Physics
Sep 23, 2013
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(Phys.org) —The photodetectors in Alan Migdall's lab often see no light at all, and that's a good thing since he and his JQI colleagues perform physics experiments that require very little light, the better to study subtle ...
Optics & Photonics
Aug 15, 2013
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(Phys.org) —At low light, cats see better than humans. Electronic detectors do even better, but eventually they too become more prone to errors at very low light. The fundamental probabilistic nature of light makes it impossible ...
Quantum Physics
Jun 19, 2013
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(Phys.org) —JQI researchers under the direction of Chris Monroe have produced quantum entanglement between a single atom's motion and its spin state thousands of times faster than previously reported, demonstrating unprecedented ...
Quantum Physics
Jun 5, 2013
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(Phys.org) —Entanglement, by general consensus of physicists, is the weirdest part of quantum science. To say that two particles, A and B, are entangled means that they are actually two parts of an inseparable quantum thing. ...
Quantum Physics
May 20, 2013
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(Phys.org) —Frustration crops up throughout nature when conflicting constraints on a physical system compete with one another. The way nature resolves these conflicts often leads to exotic phases of matter that are poorly ...
Quantum Physics
May 3, 2013
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(Phys.org) —If you could peek at the inner workings of a computer processor you would see billions of transistors switching back and forth between two states. In optical communications, information from the switches can ...
Optics & Photonics
Apr 1, 2013
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(Phys.org) —The sequence of images that constitute Hollywood movies can be stored handily on solid-state media such as magnetic tape or compact diskettes. At the Joint Quantum Institute images can be stored in something ...
Quantum Physics
Mar 28, 2013
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