Cold Atoms Redefine Vacuum Measurement Standards
There’s no such thing as a complete vacuum. Even in the cosmic void between galaxies, there’s an estimated density of about one hydrogen or helium atom per cubic meter. But these estimates are largely theoretical—no one has yet launched a sensor into intergalactic space and beamed back the result. On top of that, we have […]
How Supercomputing Will Evolve, According to Jack Dongarra
Quantum computing is interesting. It’s really a wonderful area for research, but my feeling is we have a long way to go. Today we have examples of quantum computers—hardware always arrives before software—but those examples are very primitive. With a digital computer, we think of doing a computation and getting an answer. The quantum computer […]