The written version of my lecture is a personal account of the development of laser cooling
and trap**. Rather than give a balanced history of the field, I chose to present a personal …

The lure of lower temperatures has attracted physicists for the past century, and with each
advance towards absolute zero, new and rich physics has emerged. Laypeople may wonder …

Acoustic tweezers use sound radiation forces to manipulate matter without contact. They
provide unique characteristics compared with the more established optical tweezers, such …

A Bose-Einstein condensate was produced in a vapor of rubidium-87 atoms that was
confined by magnetic fields and evaporatively cooled. The condensate fraction first …

I Introduction.-1 Review of Quantum Mechanics.-1.1 Time-Dependent Perturbation Theory.-
1.2 The Rabi Two-Level Problem.-1.2. 1 Light Shifts.-1.2. 2 The Dressed Atom Picture.-1.2. 3 …

We study high temperature spin transport in a disordered Heisenberg chain in the ergodic
regime. By employing a density matrix renormalization group technique for the study of the …

Bose-Einstein condensation, or BEC, has a long and rich history dating from the early
1920s. In this article we will trace briefly over this history and some of the developments in …

The realization of Bose-Einstein condensation (BEe) in dilute atomic gases [1-5] achieved
several long-standing goals. First, neutral atoms were cooled into the lowest energy state …

1. INTRODUCTION Beams of atoms and molecules are stalwart tools for spectroscopy and
studies of collisional processes. 1− 4 The supersonic expansion technique can create cold …