The recent deadly derailment that sent an Amtrak Northeast Regional train careening off its tracks has many people asking how such a tragedy could happen. Investigators on the case have not announced an official cause just yet, but it seems that speed played a major factor:...
Electron pairing without superconductivity has been seen for the first time by a team of physicists in the U.S. Confirming a prediction made in 1969, the electron pairs were spotted in strontium titanate using a single-electron transistor.
A new method for using light to cool solids has been created by physicists in France and Germany. The technique uses quasiparticles called "polaritons" to remove vibrational heat from a tiny piece of semiconductor, and unlike previous optical...
Globular clusters—bunches of a few thousand stars that orbit around much larger galaxies—may be harboring a dark secret. Our galaxy, the Milky Way, has about 150 globular clusters around it and, until recently, these were the only ones near enough to study in...
A team of physicists has built a microscope that is able to see up to 1000 individual fermionic atoms. The researchers devised a laser-based technique to trap and freeze fermions in place, and image the particles simultaneously. Read the associated Physical Review Letters...
Even though it is one of the fundamental laws of physics, Newton's third law can be violated in certain nonequilibrium situations. Although there have been numerous experiments on particles with nonreciprocal interactions, not as much is known about what's happening on the...
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