
Physics
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Quantum time travel: Black hole not required - physics-math - 22 November 2010 - New Scientist
How to create temperatures below absolute zero - physics-math - 01 December 2010 - New Scientist
/r/science , /r/math , /r/AskScience , /r/HardScience , /r/PhysicsBooks , /r/ParticlePhysics , /r/Quantum , /r/QuantumComputing , /r/Mathematica The aim of /r/Physics is to build a subreddit frequented by physicists, scientists, and those with a passion for physics. Papers from physics journals (free or otherwise) are encouraged. Keep posts pertinent and meme free. No one is banned; please ignore trolls. If you have a recent peer-reviewed paper, post it, or request exposure in this sidebar.
Topologist Predicts New Form of Matter : Physics
Topologist Predicts New Form of Matter - Technology Review
Back in 1970, a young physicist working in the Soviet Union made a counterintutive prediction. Vitaly Efimov, now at the University of Washington in the US, showed that quantum objects that cannot form into pairs could nevertheless form into triplets. In 2006, a group in Austria found the first example of such a so-called Efimov state in a cold gas of cesium atoms. That's puzzling.Delayed choice quantum eraser - Wikipedia, the free encyclopedia
A man sits down before a gun , which is pointed at his head. This is no ordinary gun; it's rigged to a machine that measures the spin of a quantum particle . Each time the trigger is pulled, the spin of the quantum particle -- or quark -- is measured.

