Talk at UBC Monday

Late notice, but I’m giving the theory seminar at UBC tomorrow, January 4, 2010 at noon:

Title: Adiabatic Cluster State Quantum Computing
Location: Hennings 318
Abstract:
Models of quantum computation are important because they change the physical requirements for achieving universal quantum computation. For example, one-way quantum computing requires the preparation of an entangled state followed by adaptive measurement on this state, a set of requirements which is different from the standard quantum circuit model. Here we introduce a model based on one-way quantum computing but without measurements (except for the final readout), instead using adiabatic deformation of a Hamiltonian whose initial ground state is the cluster state. This opens the possibility to use the copious results from one-way quantum computing to build more feasible adiabatic schemes. In this talk I will discuss this and other new adiabatic quantum computing protocols. This is joint work with Steve Flammia (Perimeter Institute).

Always great to visit Vancouver, let’s just hope this time I come back with my passport!

What To Read?

Lately I feel like my reading material has gotten stuck in a rut. The feel is that everything I’m reading is a rehash of something I’ve read before. Okay, maybe it is just that the rain has returned to Seattle 🙂 Since I’m a subscriber to the belief that books that show you something outside of your current view of the world are the most important, a challenge to all two of remaining readers of this blog: what should I be reading that is most likely to be of such high information content? Recommendations? (For comparison, I think my library is available on librarything. Fiction, non-fiction, whatever, though you should be warned that I was a literature major, so I’ve done most of the snotty literature.)

Today I Can't Think of a Decent Blog Post Title

I’m in D.C, attending the sorters meeting for the APS March meeting. Traveling in early December is always nice as the planes seem to be empty (*stretch*) and sheesh, it’s downright balmy here in D.C. Now I’ve absconded to a second rate hotel in the middle of what I can only guess is somewhere near the mythical land of suburbia, since the place is surrounded by office complexes, watching the civil war (no, not that civil war, that one.)
Things I’ve been thinking about when I’m not obsession about my latest research:

  • Has anyone ever tried sending a prop to a conference?
  • Because I hate advice columns about graduate school I am happy to point you to Luis von Ahn’s advice on graduate school applications.
  • Next thing you know, xkcd will be drawing Spherical Cows
  • Fafblog contemplates the Pauli paradox.
  • On twitter I was asked “do you think entangled angular momentum states provide any advantage for QKD?” to which I had only FAIL in response. Opinions?
  • A very cool volcano picture.
  • Oh, and happy birthday to Ellen Swallow Richards, even if you did go to the lesser Tech school

The 1/6th People

@EricRWeinstein is at it again in twitterland, this time on the subject of the funding of science. For an intriguing read about the glut of Ph.D.s versus science funding, he links to his (circa 1998?) article titled: “How and Why Government, Universities, and Industry Create Domestic Labor Shortages of Scientists and High-Tech Workers.” An interesting read, to say the least. Then @michael_nielsen points to Science, Money, and Politics: Political Triumph and Ethical Erosion by Daniel Greenberg which I now have to go out and buy. Damn you internet for pointing me to things I should read!
Which brings me to the title of this post. Lately I’ve been thinking a lot about funding. Actually ever since I started as a research scientist and then research faculty there really hasn’t been a time I’ve not been thinking about funding! Funding is, of course, important for all faculty, but for research faculty like me, who must pay their own salary, its even more important. While a non-research-professor may not get tenure for not getting funding, they live a very different life in which they get 10 months of salary for teaching (I also teach (when I can), because I think its important, because I like it, and because sometimes I flatter myself and think I might actually be imparting some useful knowledge down the branches of history.) To say this creates a slightly different calculus is true, though I don’t want to over exaggerate the differences: funding is seen as the lifeblood of a successful academic (never mind the content or lack thereof of the research, but we can save that for another day.)
So how do I get by? If I tell you my secret I’d have to kill you. (Okay, yeah, I’ll admit my secret: pure blind luck!) And let me just say to the funding agencies who have supported me thankyou, thankyou, thankyou! Heh. But one thing that really bothers me a lot is a policy that I must say I find nearly immoral. In particular I would point to the policy of the NSF to only fund faculty for 2 months of salary across all of their grants. Of course only a faculty member could ever call a rule like this immoral, especially in a world which knows much greater problems than the petty sagas of a first world researcher. But to me this policy reeks of ethical problems. (And yes, you can get exceptions, but you, dear reader, are you going to write a grant where you press this boundary? Really? Every grant I write will be asking for an exception.)
Immoral? Really, Mr. Pontiff? Okay stick with me here. Let’s just think about what this means from the perspective of value. Think of the NSF as a consumer of science. By saying it will only pay 2 months salary for faculty it is effectively saying that it only values one sixth of a faculties effort (at most.) Across all research grants. Okay, so faculty (most) teach, so maybe there is a reason the NSF should only be paying for 1/6th of their time (want to know what the real ratio of time they spend on the grant is? Bet it’s not 1/6th.) So let’s set aside this complaint.
No what is worse for me is the way in which this changes the balance of NSF funding. Suppose I get a NSF grant for three years for, say $100000 per year (not an unusual size.) If one is really lucky one lives at a place where you could pay 1/6th of your salary from this and then one graduate student for the year (doesn’t work for me but may work elsewhere.) In effect this means that the NSF is effectively equating 1/6th of a faculty with a graduate student. Now personally, I find that this disturbing. First, there is no way I’m worth 6 graduate students (ask my grad students if you want proof of this.) And further this is exactly the sort of funding equation that causes the glut in academia: the NSF funds the students but not the end point of where these students will go. As I’ve said in the past, I’m all for increased funding of sciences (special interest group, you know!), but only if this in a manner where the end point of the education is not necessarily inside of academia. But if you look at what the NSF is funding, I’d be hard pressed to argue that it is designed to produce well educated scientists who can work outside of academia. I call this the 1/6ths problem: the NSF is pricing into its support of research 6 graduate students per faculty, should we be surprised if single faculty positions routinely draw greater than 300 applications?
Now this is all a lot of complaining from a guy whose got a good job, where he gets to work on some awesome stuff. So despite the fact that I don’t like this policy at all, it would be bad if I just complained and didn’t point out any way to fix the problem. One way would be to change the policy, but this doesn’t quite do it for me. What I would like to see is pay-go. That is the NSF funding of graduate students should only be able to provide such support if it can project that the economy or its future funding can support said graduate student. Currently the NSF is funding people who it does not continue to support, and ill prepares these students for jobs outside of academia. Fix these (by increasing the ratio of faculty/student funding, or funding better preparation of students for jobs outside of academia) and I think we will all be better off. Except for me (who will be emailing his PM trying to explain why he wrote a blog post containing the words “NSF” and “immoral.”)

Cormac Interview in the WSJ

This interview with Cormac McCarthy by the Wall Street Journal is well worth reading (Coincidentally(?) I just started rereading the Border Trilogy.)
This amused me

[CM:] Instead, I get up and have a cup of coffee and wander around and read a little bit, sit down and type a few words and look out the window.

simply because I can attest that yes, indeed, this is what he does! And, well, because my time at the Santa Fe Institute followed a similar pattern 🙂
On the other hand here is a more ominous reason why I enjoyed (my too brief) time at SFI:

WSJ: What kind of things make you worry?
CM: If you think about some of the things that are being talked about by thoughtful, intelligent scientists, you realize that in 100 years the human race won’t even be recognizable. We may indeed be part machine and we may have computers implanted. It’s more than theoretically possible to implant a chip in the brain that would contain all the information in all the libraries in the world. As people who have talked about this say, it’s just a matter of figuring out the wiring. Now there’s a problem you can take to bed with you at night.

Living the Relativistic Life

Over the summer I started running a not so insignificant amount: 6 miles in the morning on the weekdays and 10 to 15 miles on the weekends (insert commenter telling me why this is wrong.) So, one or two or more hours out running around beautiful Seattle (My favorite route is Queen Anne to Fremont to Ballard Locks, around Magnolia and back up Queen Anne.) Which brings us to the subject of time. During my runs it seems that my watch, which runs using mechanical energy, decided that it had a new setting: relativistic mode. In other words I’d go out and run for two hours, and when I got back my watch would be ten minutes behind the clock at my home. At first I thought, cool! I get to experience time dilation in person! And then I thought: boy I’m fast. And then finally: I’m always late.
Damn you relativity!

Grape Crush Time

The grapes have been picked upand the fermenting has (hopefully!) begun. This year I’m trying two types of grapes, Cabernet Sauvignon and Sangiovese.

Apps to Randomize Your World (Some Using Quantum Physics!)

Update 10/13/09: corrected for ice cream flavor and location, thus merging two related universes.
There is a story about Richard Feynman that while he was at Princeton MIT he had a hard time with dessert. Apparently they always served either chocolate or vanilla ice cream and Feynman would agonize over which he wanted that night. Then one day he decided that he was wasting his time making this decision and so he would solve this by only choosing vanilla chocolate and from that point on in life that is what he did. He no longer wasted time choosing, and, apparently, ate a lot of vanilla chocolate ice cream. Of course there is an equally valid and equally elegant solution to this problem which is in fact the exact opposite of Feynman’s deterministic solution: choose randomly! Chocolate or vanilla? Choose randomly. Stop at the stop sign or not? Choose randomly (okay maybe not!) Of course there is the question of exactly how you choose randomly. For some, dice may suffice, but isn’t there a better way than carrying around a bag of dice which makes you look like your heading out for a night of RPGing?
Well today I’m happy to report to you that there is a solution to this problem: use your iPhone! As many of you know, when I’m stuck on a plane I like to write iPhone apps (thus leading to my app for accesing the arXiv: arXiview.) So on a few of these flights recently I kludged together a new iPhone app: MakeRandom. This app gives you access to custom random lists, dice, random numbers, and random words. To get the randomness you just set up the list you want to randomly select from and shake! Exciting, no? But today I got an email about an even more exciting use of randomness in the iPhone: Universe Splitter©:

Scientists say that every quantum event plays out simultaneously in every possible way, with each possibility becoming real in a separate universe. You can now harness this powerful and mysterious effect right from your iPhone or iPod Touch!
How? Whenever you’re faced with a choice — for example, whether to accept a job offer or to turn it down — just type both of these actions into Universe Splitter©, and press the button.
Universe Splitter© will immediately contact a laboratory in Geneva, Switzerland, and connect to a Quantis brand quantum device, which releases single photons into a partially-silvered mirror. Each photon will simultaneously bounce off the mirror and pass through it — but in separate universes.
Within seconds, Universe Splitter© will receive the experiment’s result and tell you which of the two universes you’re in, and therefore which action to take. Think of it — two entire universes, complete with every last planet and galaxy, and in one, a version of you who took the new job, and in the other, a version of you who didn’t!

Classic! Watch as this quantum physicist who wrote an app for randomness slaps himself on the forehead for not thinking of this. Check out Universe Splitter’s website for a great quote by Garrett Lisi.
Universe Splitter© is available from the iTunes store for $1.99 here
MakeRandom is also available from the iTunes store for $0.99here.
Below the fold: screenshots and a philosophical discussion of the difference between the applications.
Continue reading “Apps to Randomize Your World (Some Using Quantum Physics!)”