Ironically, of all the posts I scheduled to run while I was away on vacation last week, the only one which didn’t get automatically posted was the one saying that I’d be away and that the next weeks posts would be scheduled. Doh. So yeah, I was away.
For your viewing pleasure, Greek boats
and a Greek church
Bonus points for anyone who can identify this Greek town:
Self-Correcting Quantum Computers, Part IV
Quantum error correction and quantum hard drives in four dimension. Part IV of my attempt to explain one of my main research interests in quantum computing:
Prior parts: Part I, Part II, Part III.
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Self-Correcting Quantum Computers, Part III
The physics of classical information storage. Why is it that your hard drive works? A modern miracle, I tell you! Part III of my attempt to explain one of my main research interests in quantum computing: “self-correcting quantum computers.” Prior parts: Part I, Part II
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Self-Correcting Quantum Computers, Part II
Why is classical computing possible at all? A silly question, but one which never ceases to amaze me. Part II of my attempt to explain one of my main research interests in quantum computing: “self-correcting quantum computers.” Prior parts: Part I
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Self-Correcting Quantum Computers, Part I
Quantum computing is hair-brained, but then again so is classical probabilistic computing. Part I of my attempt to explain one of my main research interests in quantum computing: “self-correcting quantum computers.”
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QCMC 2008 Comment Thread
NSF Expeditions Awarded
“Expeditions in Computing awards” are ten million dollar NSF grants from the Directorate for Computer and Information Science and Engineering to pursue long-term research agendas. My favorite kinds of projects: high risk, high reward, and long term. Today the first four award winners have been announced. The winning programs are
- Open Programmable Mobile Internet 2020
- The Molecular Programming Project
- Understanding, Coping with and Benefiting from Intractibility
- Computational Sustainability: Computational Methods for a Sustainable Environment, Economy and Society
Of note for the theoretical computer science crowd is the third of these, won by a Princeton area team (lead by Sanjeev Arora), which is going to establish a “Center for Intractability” at Princeton. Very cool. And now I know where to go if I ever need a traveling salesman.
We Don't Need Another Hero
I knew there was a reason I called this blog “The Quantum Pontiff.” Amazon-ing my name:
QEC 07 Videos Online
Interested in quantum error correction (who isn’t!) Daniel Lidar informs me that the talks from the QEC07 conference are now all available online.
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Rounding DeLong
IANAE (that’s I am not a person with severe physics envy but who is compensated for this fact by earning a higher salary than a physicist), but I do not understand Brad DeLong:
Traders! Read the second page of the statistical release before you press the button!
Meredith Beechey…and Jonathan Wright have details:FRB: FEDS paper 2007-5: “Rounding and the Impact of News: A Simple Test of Market Rationality”:
Abstract: Certain prominent scheduled macroeconomic news releases contain a rounded number on the first page of the release that is widely cited by newswires and the press, and a more precise number in the text of the release. The whole release comes out at once. We propose a simple test of whether markets are paying attention to the rounded or unrounded numbers by studying the high-frequency market reaction to such news announcements. In the case of inflation releases, we find evidence that markets systematically ignore some of the information in the unrounded number. This is most pronounced for core CPI, a prominent release for which the rounding in the headline number is large relative to the information content of the release.
If the market is only reacting to the rounded number, why should a trader pay attention to the unrounded number? Is this just a case of sipping at the cooler of the efficient market hypothesis (i.e. surely the market will eventually revert to the unrounded number.) Or am I missing something?