Few-body physics with ultracold atomic and molecular systems in traps

Ultracold halo dimers and few-body physics

Ultracold dimers in s-wave states are in the quantum halo regime1, if their binding energy is much smaller than a typical energy set by the long-range van der Waals interaction. In this regime, the scattering length is very large and details of the interatomic interaction become irrelevant. Studying the interactions of halo dimers provides experimental access to universal phenomena in few-body ...

Weakly bound atomic trimers in ultracold traps

M. T. Yamashita, T. Frederico, Lauro Tomio, and A. Delfino Laboratório do Acelerador Linear, Instituto de Fı́sica da USP, 05315-970 São Paulo, Brazil Departamento de Fı́sica, Instituto Tecnológico de Aeronáutica, Centro Técnico Aeroespacial, 12228-900 São José dos Campos, Brazil Instituto de Fı́sica Teórica, Universidade Estadual Paulista, 01405-900 São Paulo, Brazil Instituto de Fı́sica, Universid...

Control and Dynamics of Few-Body Systems at Ultracold Temperatures

study many atomic phenomena Atomic physics in ion traps

UNDER normal conditions, an atom hurtles from place to traps. In this article we highlight how researchers have place. It can cross a room in mere milliseconds, and colcreated exotic quantum states of an atom’s motion, lides with other particles once every nanosecond or so. investigated the possibility of quantum computing, This motion, which is both random and unlimited in studied the interact...

Implementing quantum electrodynamics with ultracold atomic systems

Wediscuss the experimental engineering ofmodel systems for the description of quantum electrodynamics (QED) in one spatial dimension via amixture of bosonic Na and fermionic Li atoms. The local gauge symmetry is realized in an optical superlattice, using heteronuclear boson– fermion spin-changing interactions which preserve the total spin in every local collision.We consider a large number of b...