Optically Programmable Interactions for Cold Atoms

Vladislav Gavryusev, Luca Guariento, Veronica Giardini +6 more

Ultra-cold interacting Rydberg Strontium atoms trapped in reconfigurable optical tweezers can simulate quantum magnetism and energy transport. I will present our setup and planned capabilities, including electric field control, 3D traps and single site addressing.

O. Alloschery, J. Weiner

Russell McLean, A. I. Sidorov, David S. Gough +6 more

There is a need in atom optics and atom interferometry for high quality atomic mirrors and beamsplitters that will permit the manipulation and control of beams of slowly moving atoms. We have an established programme for developing and testing mirrors for atom optics based on the interaction between the magnetic dipole moment of an atom and the exponentially varying magnetic field above a periodic array of magnetic elements. Previously we have observed reflection of cold atoms from mirrors of a number of different designs, including a macroscopic array of permanent rare-earth magnets of alternating polarity, grooved ferromagnetic structures, arrays of current-carrying conductors and structures recorded onto magneto-optical films.

E. Giacobino, Jean-Michel Courty, Claude Fabre +2 more

Benjamin P. Holder

W. Vassen, Andreas Hemmerich, E. Arimondo

This Special Issue of Journal of Optics B: Quantum and Semiclassical Optics brings together the contributions of various researchers working on theoretical and experimental aspects of cold quantum gases. Different aspects of atom optics, matter wave interferometry, laser manipulation of atoms and molecules, and production of very cold and degenerate gases are presented. The variety of subjects demonstrates the steadily expanding role associated with this research area. The topics discussed in this issue, extending from basic physics to applications of atom optics and of cold atomic samples, include: •Bose--Einstein condensation •Fermi degenerate gases •Characterization and manipulation of quantum gases •Coherent and nonlinear cold matter wave optics •New schemes for laser cooling •Coherent cold molecular gases •Ultra-precise atomic clocks •Applications of cold quantum gases to metrology and spectroscopy •Applications of cold quantum gases to quantum computing •Nanoprobes and nanolithography. This special issue is published in connection with the 7th International Workshop on Atom Optics and Interferometry, held in Lunteren, The Netherlands, from 28 September to 2 October 2002. This was the last in a series of Workshops organized with the support of the European Community that have greatly contributed to progress in this area. The scientific part of the Workshop was managed by A Hemmerich, W Hogervorst, W Vassen and J T M Walraven, with input from members of the International Programme Committee who are listed below. The practical aspects of the organization were ably handled by Petra de Gijsel from the Vrije Universiteit in Amsterdam. The Workshop was funded by the European Science Foundation (programme BEC2000+), the European Networks 'Cold Quantum Gases (CQG)', coordinated by E Arimondo, and 'Cold Atoms and Ultraprecise Atomic Clocks (CAUAC)', coordinated by J Henningsen, by the German Physical Society (DFG), by the Dutch Foundation for Fundamental Research on Matter (FOM) and by the Dutch Gelderland province. We thank all these sponsors and the members of the International Programme Committee for making the Workshop such a success. At this point we take the opportunity to express our gratitude to both authors and reviewers, for their efforts in preparing and ensuring the high quality of the papers in this special issue. Wim Vassen Vrije Universiteit, Amsterdam Andreas Hemmerich Universität Hamburg Ennio Arimondo Università di Pisa Guest Editors International Programme Committee A Aspect Orsay, France E Cornell Boulder, USA W Ertmer Hannover, Germany T W Haensch Munich, Germany A Hemmerich Hamburg, Germany W Hogervorst Amsterdam, The Netherlands D Kleppner Cambridge, USA C Salomon Paris, France G V Shlyapnikov Amsterdam, Paris, Moscow S Stringari Trento, Italy W Vassen Amsterdam, The Netherlands J T M Walraven Amsterdam, The Netherlands