I'm a physicist/computer scientist/applied mathematician or something (my Ph.D. is in Physics), whose day job is mostly working on the theory of quantum computation and quantum information processing at Los Alamos National Laboratory.

You can find some of my work here (under author, put in "barnum").

The title of this blog was chosen after I found that many other possibilities were either taken, or the most natural URL to associate with them was taken.  It's not to be taken as an exhaustive description of the topics of a blog, but as a representative sample.  For example, I'll probaby opine freely on economics, public policy, and the doings of the not-a-minute-too-soon-to-be-inaugurated Obama administration.  I own the copyright of all content I supply to the blog and the blog site, except for fair use of material copyrighted by others; and by commenting on this blog, users grant me the right to use the comment material, for example by keeping it available on this blog.  For now, I've enabled comments, but they will not appear publicly until they are moderated.  Once I see how this goes, I may enable immediate posting of comments that pass wordpress's G-rated test.   Offensive and nonconstructive comments will not be posted.  If it's too much work, I may need to disable comments; we'll see.  Please keep comments thoughtful and on topic; consider whether you have something to add beyond "me too", and whether you are informed on the topic you plan to comment on.

Cheers!

Howard