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"Filming" an Electron

On the intertubes today I’m seeing a lot of references to “Electron filmed for the first time” (digg, msnbc, Live Science.) For a decent explanation that doesn’t involve radically distorting quantum theory, I recommend this Physical Review Focus article (and, of course, nothing compares to the original PRL…although it must be said, as always, that four pages is not enough, damnit!) Note that, if I understand correctly, the movie “filmed” above is a movie in “momentum space” and, of course, we’re not really talking about the observation of a single electron, but of the momentum distribution of the coherent electron wave packets. But what really confuses me is what the actual “movie” is supposed to represent.
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Ski Lift Conversations

The man on the lift chair at Stephen’s Pass asks me my occupation. Professor, I tell him, at the University of Washington.
Oh, he offers, My daughter is a fourth generation Husky. I was in the class of 1972. Or, well I would have been if I’d graduated, but I knew what I wanted to do didn’t need a degree. If I’d wanted to work for IBM or Honeywell or something, then I guess it would matter.
Seattle, he continues scratching some snow from his mustache, used to be such a great city. But now, the traffic is crazy. My wife and I went on a trip and couldn’t find a city more messed up than Seattle.
Interesting, I tell him, hoping that exactly my lack of interest might change the topic of conversation. So what do you do?
I’m retire now, but I used to be developer.

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If Only the ACLU Were Alice and Bob

There are days when I wish quantum cryptography was a mature, installed, technology. Today is one of those days. Why? You might think its because I’m a quantum obsessed physicist whose daily sustenance depends on the future of quantum information science. But no. Today I wish quantum cryptography were installed because today the Supreme Court rejected a challenge to the Bush administration’s domestic spying program;

The Supreme Court rejected a challenge Tuesday to the Bush administration’s domestic spying program.
The justices’ decision, issued without comment, is the latest setback to legal efforts to force disclosure of details of the warrantless wiretapping that began after the Sept. 11 attacks.
The American Civil Liberties Union wanted the court to allow a lawsuit by the group and individuals over the wiretapping program. The 6th U.S. Circuit Court of Appeals dismissed the suit, saying the plaintiffs could not prove their communications had been monitored

If only the ACLU’s clients had been using quantum cryptography, then they would know that their phone lines were being tapped, and they would have the record to prove it. Of course what the judges probably really meant was that the plaintiffs could not prove their communication had been monitored by the government’s domestic spying plan. Sadly, quantum cryptographers have yet to develop a method for identifying the name of the attacker when eavesdropping occurs on quantum key distribution.

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sSQUINT Conference

On President’s day I attended the sSQUINT followup conference to SQUINT 2008. sSQUINT? Never heard of it? Neither had I. But when I learned that the “s” stood for “ski” (or maybe “snowboard”) and that some of my fellow quantum informationers would be trekking to Wolf Creek Ski Area, well I had to submit a paper. Mine paper was about mogul formation as a self-organizing system. Another paper was on the ski bum as an outcast and iconoclast. Much to our delight the weather gods gave us some beautiful blue southern Colorado sunshine. For your delight, pictures below.
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Quantum Sloan Winners

Sloan awards have been announced for this year. On the list I noticed at least two three quantum computing/information related names: Alexandre Blais (University of Sherbrooke), Andris Ambainis (University of Waterloo), and Jason Petta (Princeton.) Congrats!