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Erstmals Quantenverschränkung in 100 Dimensionen

By Guest PostMarch 29, 2014Sciencebunostegos akokanensis, dimension, erc, grosses gehirn, intelligenz, isolated pareiasaur, jason chan, morgan turner, quantenphysik, quantenverschraenkung, racial hate crimes, racial tensions, universitaet wien, walk upright

Eines der wesentlichen Phänomene der Quantenphysik ist die Existenz von sogenannten Verschränkungszuständen, wobei Teilchen in einer scheinbar paradoxen Art und Weise miteinander verbunden sind. Verschränkungszustände bilden die Grundlage für eine Reihe von neuartigen technologischen Anwendungen. In vielen Fällen kann deren Nützlichkeit durch erhöhte Komplexität gesteigert werden. Ein Forscherteam rund um den Wiener Physiker Anton Zeilinger hat nun die komplexesten Verschränkungszustände nachgeweisen, die bislang mit Photonen – elementaren Lichtteilchen – geschaffen wurden. Die Forschungsergebnisse, die aktuell in der renommierten Fachzeitschrift PNAS erscheinen, bringen die effiziente Nutzung von Quanteneffekten in technologischen Anwendungen wieder einen Schritt weiter.

Als Quantenverschränkung wird ein Effekt bezeichnet, der es zwei oder mehreren Teilchen scheinbar erlaubt, einander ohne Zeitverzögerung über beliebige räumliche Distanzen hinweg zu beeinflussen. Obwohl dieses Verhalten im Rahmen der Quantenphysik an sich weitgehend verstanden ist, widerspricht es unserer Intuition. (more…)

Author Paul Tough Gives Talk on the Traits that Help Children Succeed

By Guest PostNovember 14, 2012Culture, Educationariel kalil, character strength, character traits, chicago harris, college, completion rate, conscientiousness, crime lab, curiosity, dimension, homecoming, how children succeed, information, international house, james heckman, joshua anderson, journalistic enterprise, neighborhoods, nobel laureate, non cognitive skills, northwestern university, optimism, paul tough, perseverance, public policy, school success, Science, self control, social policy, stress, success, trauma, uchicago

To Paul Tough, his recent visit to the University of Chicago Harris School of Public Policy was “a nice homecoming.”

During the two years of research for his new book, How Children Succeed: Grit, Curiosity and the Hidden Power of Character, Tough spent time at UChicago and in its surrounding neighborhoods.

“The nerve center of my journalistic enterprise was a small dorm room in International House,” he joked Oct. 18 in a speech at Chicago Harris, saying that many of the ideas in the book drew from work in the Department of Economics, the Economics Research Center, the Crime Lab and from the Consortium on Chicago School Research. (more…)

Elevated Indoor Carbon Dioxide Impairs Decision-Making Performance

By Guest PostOctober 28, 2012Environmentberkeley lab, brain injury, building, carbon dioxide, CO2, cognitive function, concentration, decline, dimension, dysfunctional, economic consequence, economic impact, energy consumption, energy-efficient, human, indoor, mark mendell, new york, pharmaceutical, pollutant, ppm, primary source, rate, reduction, scenarios, sms, state university, suny, upstate medical university, usha satish, ventilation, william fisk

Berkeley Lab scientists surprised to find significant adverse effects of CO2 on human decision-making performance.

Overturning decades of conventional wisdom, researchers at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have found that moderately high indoor concentrations of carbon dioxide (CO₂) can significantly impair people’s decision-making performance. The results were unexpected and may have particular implications for schools and other spaces with high occupant density.

“In our field we have always had a dogma that CO₂ itself, at the levels we find in buildings, is just not important and doesn’t have any direct impacts on people,” said Berkeley Lab scientist William Fisk, a co-author of the study, which was published in Environmental Health Perspectives online last month. “So these results, which were quite unambiguous, were surprising.” The study was conducted with researchers from State University of New York (SUNY) Upstate Medical University. (more…)

The Search for Dark Matter Goes Deeper Underground

By Guest PostMay 28, 2012Scienceacrylic tank, atom, background particles, berkeley lab, bullet cluster, cherenkov radiation, cosmic rays, dan mckinsey, dark matter, davis campus, daya bay project, dimension, electric field, electromagnetism, electron, England, factor, gravitational effect, homestake, kamland, lux, lux collaboration, lux detector, lux zeplin, massive particles, motion of galaxies, neutrino experiment, organic liquid, radioactive decay, rock formation, sanford laboratory, scintillators, search, sno, south dakota, sudbury neutrino observatory, tautology, time projection chamber, titanium tank, underground, wimps, xenon detector, xenon gas, xray emission, yale university, zeplin

With LUX ZEPLIN Berkeley Lab researchers seek to increase the sensitivity of LUX, the most sensitive search for dark matter yet, by orders of magnitude

Although it’s invisible, dark matter accounts for at least 80 percent of the matter in the universe. No one knows what it is, but most scientists would bet on weakly interacting massive particles, or WIMPs.

LUX, the Large Underground Xenon detector at the Sanford Underground Research Facility in the Black Hills of South Dakota, is calling that bet with a titanium bottle holding 350 kilograms of liquid xenon, placed in a cavern 4,850 feet down in the former Homestake gold mine. LUX is a trap set for dark-matter WIMPs. (more…)

Do I Look Bigger With My Finger on a Trigger? Yes, Says UCLA Study

By Guest PostApril 12, 2012Culture, Generalair force office, american, anthropologist, brandishing a weapon, caulking gun, colin holbrook, craigslist, dangerous, daniel fessler, dimension, dirty harry, electric drill, handgun, jeffrey k snyder, kitchen knife, magnitude, mechanicalturk, meg sullivan, paint brush, photograph, pistol, rambo, scrawny thugs, ucla, violent conflict, website

UCLA anthropologists asked hundreds of Americans to guess the size and muscularity of four men based solely on photographs of their hands holding a range of easily recognizable objects, including handguns. (more…)

Tag Archives: dimension

Erstmals Quantenverschränkung in 100 Dimensionen

Author Paul Tough Gives Talk on the Traits that Help Children Succeed

Elevated Indoor Carbon Dioxide Impairs Decision-Making Performance

The Search for Dark Matter Goes Deeper Underground

Do I Look Bigger With My Finger on a Trigger? Yes, Says UCLA Study