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Theoretical Musings
Dave Bacon is a theoretical ski bum who is also a pseudo professor. His research is on quantum computing, his scientific passions extend to everything in physics, mathematics, computer science and beyond, and his personal pleasures include making wine, playing poker, skiing, camping, and daydreaming (although not all of those at the same time.)
Nothing he says on this blog should be construed as having anything to do with his employer or his dog.
July 30, 2009
Category: Quantum Computing
Okay this one from ScienceDaily made my day. No it made my week. The title is "Police Woman Fights Quantum Hacking And Cracking." Intriguing, no? Who is this mysterious police woman in quantum computing? I don't know many police offers...
Posted by Dave Bacon at 6:53 PM • 2 Comments • 0 TrackBacks
July 29, 2009
Category: Astronomy
A widget to watch out for wayward asteroids:JPL's Asteroid Watch Widget tracks asteroids and comets that will make relatively close approaches to Earth. The Widget displays the date of closest approach, approximate object diameter, relative size and distance from Earth...
Posted by Dave Bacon at 9:39 PM • 0 Comments • 0 TrackBacks
Category: Open Science
Since it seems that the "arXiv on your hard drive" is dead I've been thinking a bit about if there is a better way to achieve the goal of distributing archives of the arXiv. One thing I liked about the...
Posted by Dave Bacon at 1:58 PM • 17 Comments • 0 TrackBacks
Category: Computers
Rod Van Meter is in search of some summer reading:I'm feeling the need to recharge my store of ideas, and I have the nagging feeling that my lack of currency in a bunch of fields is causing me to miss...
Posted by Dave Bacon at 11:57 AM • 2 Comments • 0 TrackBacks
July 28, 2009
Category: Computer Science
Today on the arXiv an new paper appeared of great significance to quantum computational complexity: arXiv:0907.4737 (vote for it on scirate here)Title: QIP = PSPACE Authors: Rahul Jain, Zhengfeng Ji, Sarvagya Upadhyay, John Watrous We prove that the complexity class...
Posted by Dave Bacon at 12:10 PM • 25 Comments • 0 TrackBacks
July 27, 2009
Category: Off The Deep End
A new entry in the best title every contest, arXiv:0907.4152:Born Again Authors: Don N. Page Abstract: A simple proof is given that the probabilities of observations in a large universe are not given directly by Born's rule as the expectation...
Posted by Dave Bacon at 6:18 PM • 9 Comments • 0 TrackBacks
July 26, 2009
Category: Off The Deep End
Writing a blog is for me (1) amusing and (2) amusing. Can anyone take anything that I write on a blog seriously? Well sometimes people do. Many eons ago (okay, I lie, it was 2005), I wrote a post about...
Posted by Dave Bacon at 10:54 PM • 3 Comments • 0 TrackBacks
July 22, 2009
Category: Astronomy
Two notes from Caltech of interest:Michael L. Roukes' group at Caltech has produced a NEMS (nanoelectromechanical system) device which can (almost) measure the mass of a single molecule (as opposed to the many tens of thousands (is this the correct...
Posted by Dave Bacon at 10:55 PM • 9 Comments • 0 TrackBacks
July 20, 2009
Category: Astronomy
As someone who was born on a lunar eclipse (explains a lot, no?) the 40th anniversary of man walking on the moon has a special place in my heart. Okay, that sentence makes no sense (I was born on a...
Posted by Dave Bacon at 2:21 PM • 3 Comments • 0 TrackBacks
July 16, 2009
Category: Science 2.0
A fellow quantum computing researcher of mine recently joined FriendFeed. Along with another researcher we got involved in a discussion about a paper concerning a certain recent claimed "disproof of Bell's theorem." (arXiv:0904.4259. What it means to "disprove a theorem"...
Posted by Dave Bacon at 11:16 PM • 11 Comments • 0 TrackBacks
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