Tag Archives: photons

Quantum Teleportation: Step 4, 150 Kilometers

News: Photonics    June 18, 2012
It’s a race of sorts. It’s a race to be the first research team to use quantum teleportation to transmit messages to and from orbiting satellites. The distance of this transmission will be about 500 kilometers. The latest ‘leg’ of this race was just completed by a team of European physicists and published at arXiv [...]
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Transformation optics: the light fantastic

Impact: Photonics    January 17, 2011
Third in a series of posts inspired by ten topics in ‘Insights of the Decade’ from the December 17, 2010 special issue of Science Magazine The topics are: Inflammation, climatology, tricks of light, alien planets, the microbiome, cell development, Martian water, the DNA time machine, cosmology and epigenetics. The original articles are now behind a [...]
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Quantum teleportation over 16 km in open air

News: Communications    May 20, 2010
Quantum teleportation is not the easiest concept to understand, much less believe. Teleportation sounds like something out of Star Trek. It’s not; this is real. In what promises to be a milestone experiment led by Jian-Wei Pan and Cheng-Zhi Peng at the University of Science and Technology of China and Tsinghua University (Beijing, China), quantum [...]
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Phonons in our future

News: Quantum Physics    February 22, 2010
Ever heard of a ‘phonon torpedo’? How about a ‘phonon laser’? Not that either? No wonder, they don’t exist. Although a phonon is to sound as the photon is to light, we do not know much about working with phonons. However, here is news concerning research that – one day – may bring about devices [...]
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Taking the temperature of the Big Bang + milliseconds

News: Nuclear Physics    February 15, 2010
At the right temperature protons and neutrons ‘melt’ to become a plasma of their constituent particles: quarks and gluons. New experiments at the Relativistic Heavy Ion Collider (RHIC), at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have now determined that the temperature at which quark-gluon plasma (QGP) forms is approximately 4 trillion degrees [...]
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A lasing germanium

News: Communications    February 5, 2010
Germanium, a semiconducting element, is not supposed to lase. That is, when it gets its electrons excited, they go flying off as heat – not light. So the conventional wisdom in microelectronic circles (and textbooks) is that germanium does not lase – and can’t be made to work in a laser. This was unfortunate, because [...]
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