tag:blogger.com,1999:blog-5880610.post112847234522919561..comments2024-01-13T18:57:18.243-05:00Comments on Information Processing: Entanglement entropySteve Hsuhttp://www.blogger.com/profile/02428333897272913660noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5880610.post-1129159901219172012005-10-12T19:31:00.000-04:002005-10-12T19:31:00.000-04:00DB,Yes, it is standard. I think Sakurai even discu...DB,<BR/><BR/>Yes, it is standard. I think Sakurai even discusses it when covering density matrices.<BR/><BR/>We came to it by accident, but then realized it had to work out that way.<BR/><BR/>The magic is in the form of the v.N. entropy = - tr rho ln rho. It always gives you a thermal result if you extremize it subject to, e.g., an energy constraint.<BR/><BR/>Cheers!Steve Hsuhttps://www.blogger.com/profile/02428333897272913660noreply@blogger.comtag:blogger.com,1999:blog-5880610.post-1129137421988994622005-10-12T13:17:00.000-04:002005-10-12T13:17:00.000-04:00Nice paper, and I find the results intuitively app...Nice paper, and I find the results intuitively appealing.<BR/><BR/>Cute how "beta" starts as a Lagrange multiplier, and ends up as the inverse temperature - is that original? Or did I just miss that day in Stat Mech?Anonymousnoreply@blogger.com