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astrid.tech
| | blog.c0nrad.io
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| | Calculating the stationary states of an electron in a quantum infinite well
| | rjlipton.com
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| | A cautionary tale Karl Sundman was a Finnish mathematician who solved a major open problem in 1906. His solution would have been regarded as paradigm-``shifty'' had it been a century or so earlier. It employed power series to represent the solutions of equations, namely the equations of the 3-body problem famously left unsolved by Isaac...
| | 4gravitons.com
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| | It's paper season! I've got another paper out this week, this one a continuation of the hexagon function story. The story so far: My collaborators and I have been calculating "six-particle" (two particles collide, four come out, or three collide, three come out...) scattering amplitudes (probabilities that particles scatter) in N=4 super Yang-Mills. We calculate...
| | 4gravitons.com
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| Merging quantum mechanics and gravity is a famously hard physics problem. Explaining why merging quantum mechanics and gravity is hard is, in turn, a very hard science communication problem. The more popular descriptions tend to lead to misunderstandings, and I've posted many times over the years to chip away at those misunderstandings. Merging quantum mechanics...