Lasers

Category archives for Lasers

In which I unpack a cryptic paper title and explain how quantum superposition lets you use light to keep things from interacting with light. ————- I joined AAAS a couple of years ago to get a break on the registration fee for their meeting, and I’ve kept up the membership mostly because I like having…

Do the New Paper Dance

OK, it’s a paper I mentioned here before, when it went up on the arxiv, but the “Comments on Atomic, Molecular, and Optical Physics” article I wrote this summer is up on the Physica Scripta web site now, and for the next not-quite-thirty days it’s free to read and download: Searching for new physics through…

In which we do a little imaginary Q&A to explain the significance of Tuesday’s Nobel Prize to Dave Wineland and Serge Haroche. ———— I did a quick post Tuesday morning noting that the latest Nobel Prize in Physics was awarded to two big names from my corner of the field. This would’ve been a great…

In which we do a little ResearchBlogging to look at a new paper about weird quantum effects, entangling two photons that never both exist at the same time. ———— I’m teaching full-time this term, but I’ve blocked out Thursdays as a day when I don’t do class- or chair-related work. Usually, this means trying to…

So, it’s been a while, but let’s see if we can’t hit the ground running with a good physics post. There have been a few notable physics events since I went on hiatus, but for a return to physics ResearchBlogging, we’ll go with something near and dear to my heart, ultracold atoms. Specifically, this Science…

In which we look at a slightly crazy-sounding proposal from my former boss, the experimental realization of which is getting close to completion. ———— I spent more or less the entire first day of DAMOP a couple of weeks ago going to precision measurement talks. Most of these were relatively sedate (at least by the…

In which we do a little ResearchBlogging, taking a look at a slightly confusing paper putting a new twist on the double-slit experiment. ———— I’m off to California this afternoon, spending the rest of the week at DAMOP in Pasadena (not presenting this year, just hanging out to see the coolest new stuff in Atomic,…

I’ve been busily working on something new, but I’m beginning to think I’ve been letting the perfect be the enemy of the good-enough-for-this-stage, so I’m setting it aside for a bit, and trying to get caught up with some of the huge number of things that have been slipping. Which includes getting the oil changed…

Yesterday’s equation was the first real result of quantum theory, Max Planck’s formula for the black-body spectrum. Planck never really liked the quantum basis of it, though, and preferred to think of it as just a calculational trick. It wasn’t until 1905 that anybody took the idea really seriously, leading to today’s equation: From the…

A physics story makes the front page of the New York Times today. Sadly, it’s with the headline Laser Advances in Nuclear Fuel Stir Terror Fear. Sigh. The key technological development, here, is that General Electric has been playing around with a laser-based isotope separation technique. This is an idea that’s been around for a…