
BoseEinstein Condensation in magnetooptical traps 
Basics
In 1995 the first socalled atomic BoseEinstein Condensate has been produced by a couple of physicists from Boulder/Colorado. Using a new type of atom trap the group at JILA managed to cool a dilute gas of around 2000 Rubidium 87 atoms to temperatures of a few hundred nanokelvins. In 1925  after a correspondence with Satyendrah Nath Bose  Albert Einstein predicted that identical particles with integer spin (bosons) under certain circumstances condense in a single quantum state. This means that in particular all particles have the same positions and velocities. If you would like to know more about this topic, there is a very good introduction with lots of JAVA applets on the web: Physics 2000 A poster presentation for pupils (in german) is available as PDF and as PS file. Some selected Links 
Zeros of the canonical 
Recursion formulars We developed recursion formulars for the calculation of thermodynamic properties of finite systems, which can be utilized to describe BoseEinstein condensates. Click here for a recursion for the canonical partition function and here for a recent approach we utilized to study the ground state fluctuations and specific heats of ideal Bosegases. The parameters of the JILA TOP trap have been utilized to demonstrate the usefulness of the recursion formulars in detail. The results are given in a Diploma thesis. There are also lots of pictures and animations available. There is a simple Java program which illustrates the use of our recursion formula. Just download the file BoseJava.tar.gz, unpack it, and type java Bose (This assumes that you have a properly installed java environment). 