Most of us don’t need a calendar to tell us when a season is ending. We can feel it in the weight we’re carrying — the ...

TWA is one such semiclassical approach that dates back to the 1970s, but is limited to isolated, idealized quantum systems ...

Computers today add at a rate of 10 million calculations per second and will soon add even faster. Mathematical analysis can now predict the best performance attainable by any computer, present or ...