The big physics story at the moment is probably the new measurement of the size of the proton, which is reported in this Nature paper (which does not seem to be on the arxiv, alas). This is kind of a hybrid of nuclear and atomic physics, as it’s a spectroscopic measurement of a quasi-atom involving […]
Category: Atoms and Molecules
Photons: Still Bosons
Last week, Dmitry Budker’s group at Berkeley published a paper in Physical Review Letters (also free on the arxiv) with the somewhat drab title “Spectroscopic Test of Bose-Einsten Statistics for Photons.” Honestly, I probably wouldn’t’ve noticed it, even though this is the sort of precision AMO test of physics that I love, had it not […]
Watching Individual Atoms Make a Phase Transition
A press release from Harvard caught my eye last week, announcing results from Markus Greiner’s group that were, according to the release, published in Science. The press release seems to have gotten the date wrong, though– the article didn’t appear in Science last week. It is, however, available on the arxiv, so you get the […]
Dropping Bose Condensates for Fun and Science
An experiment in Germany has generated a good deal of publicity by dropping their Bose-Einstein Cendensate (BEC) apparatus from a 146 meter tower. This wasn’t an act of frustration by an enraged graduate student (anybody who has worked with BEC has probably fantasized about throwing at least part of their apparatus down a deep hole), […]
The Periodic Table Is Not a Crossword Puzzle
A number of SF-related sites have been talking about the “Periodic Table of Women in SF” put together by Sandra McDonald, presumably passed around at Wiscon. James Nicoll has a list of the authors, and SFSignal has a link to the table, which I will reproduce here to save you the annoyance of opening a […]
Table-Top X-Ray Lasers
I mentioned in a previous post that one of the cool talks I saw at DAMOP had to do with generation of coherent X-Ray beams using ultra-fast lasers. What’s particualrly cool about this work is that it doesn’t require gigantic accelerators or nuclear explosions to produce a laser-like beam of x-rays– it’s all done with […]
Home from DAMOP
Some late nights and wireless problems conspired to keep me from posting anything Friday or Saturday, but I was still at the meeting, and saw some cool talks on coherent X-ray production with lasers, opto-mechanics, and ridiculously good atomic clocks, some of which I hope to talk about later. For the moment, I’m just enjoying […]
Anatomy of a Conference: DAMOP Day 2– The Rise of Precision Measurement
Since I sort of implied a series in the previous post, and I have no better ideas, here’s a look at Thursday’s DAMOP program:
My Wednesday at DAMOP
I was pretty sedentary on Wednesday, going to only two sessions, and staying for most of the talks in each. I spent most of the initial prize session getting my bearings in the conference areas, and talking to people I know from my NIST days. In the 10:30 block, I went to the session on […]
Anatomy of a Conference: DAMOP Day 1
The conference I’m at this week is the annual meeting of the Division of Atomic, Molecular, and Optical Physics of the American Physical Society (which this year is joint with the Canadian version, the Division of Atomic and Molecular Physics and Photon Interactions, or “DAMPΦ.” The Greek letter is a recent addition– as recently as […]