Category Archives: News

FQXi Essay Contest

I wrote an essay for the FQXi essay contest.  This year’s theme is “It from bit or bit from it?” and I decided to write about the extent to which Wheeler’s “it from bit” helps us to understand the origin of quantum probabilities from a subjective Bayesian point of view.   You can go here to read and rate the essay and it would be especially great if any fellow FQXi members would do that.

RSS Feed Woes

I’ve been having problems with the news feed for this site, so I have switched to a feedburner feed at http://feeds.feedburner.com/MattLeifer. Links to the old feed should get forwarded automatically, but this does not seem to be working in Google Reader at the moment so you should update to the new feed to get the latest articles. In particular, my latest post on Quantum Time Travel is missing from the old feed in Google Reader.

Return to blogging

I have decided to try to make a return to blogging and I am intending to write new posts about once or twice a week. Making a statement like this is dangerous, as veteran bloggers know well, as it usually leads to several month’s radio silence. Nevertheless, I hope that making this announcement will give me enough motivation to actually go through with it.

For those of you who are not up-to-date with the latest Matt Leifer gossip, I essentially gave up blogging at the end of 2007 because I came down with a mysterious illness that, amongst other things, ruined my ability to do anything that requires concentration. I had to take an indefinite leave of absence from work in April 2008 and I can attest that this is not a fantastic thing to do for your academic career when you are still a postdoc. I have since been diagnosed with Chronic Fatigue Syndrome, a controversial syndrome that does not have any very effective treatments (at least none of them have really worked for me so far). Although I am not really feeling any better, I have decided to try and work part-time for a couple of days a week and I am in the process of transferring the remainder of my FQXi grant to University College London to pay my salary for about eight months.

As you can imagine, I have built up a lot of internal rants about quantum theory in the couple of years since I stopped blogging, so I do not think I will have much trouble coming up with topics to write about. One person who should be especially glad about my return to blogging is Chad Orzel, because it means that I will have far less time to write overly long comments on his blog whenever he writes something about that touches on the foundations of quantum theory.

Hope to see you round here sometime soon!

Apologies

The website has not been updated for a long time due to recent illness.  There are two new preprints (see below) and the publications section has been updated.

FQXi Article

Download a popular account of some of my work from the FQXi site (pdf).

Publications

Generalized No-Broadcasting Theorem has been accepted for publication in Phys. Rev. Lett. and Quantum Graphical Models and Belief Propagation has been accepted for publication in Ann. Phys.

Major site update

I’ve moved most of the dynamic content to the homepage, simplified the navigation and added functionality to the sidebar.