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| 19th century math tactic gets a makeover -- and yields answers up to 200 times faster Posted: 30 Jun 2014 09:49 AM PDT A relic from long before the age of supercomputers, the 169-year-old math strategy called the Jacobi iterative method is widely dismissed today as too slow to be useful. But thanks to a curious, numbers-savvy engineering student and his professor, it may soon get a new lease on life.  |
| Quantum dots created with single-atom precision Posted: 30 Jun 2014 06:45 AM PDT Physicists have used a scanning tunneling microscope to create quantum dots with identical, deterministic sizes. The perfect reproducibility of these dots opens the door to quantum dot architectures completely free of uncontrolled variations, an important goal for technologies from nanophotonics to quantum information processing as well as for fundamental studies.  |
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