tailieunhanh - Magnetic lattices for ultracold atoms

This article reviews the development in our laboratory of magnetic lattices comprising periodic arrays of magnetic microtraps created by patterned magnetic films to trap periodic arrays of ultracold atoms. | Communications in Physics Vol. 29 No. 2 2019 pp. 97-117 DOI 0868-3166 29 2 13678 REVIEW PAPER MAGNETIC LATTICES FOR ULTRACOLD ATOMS TIEN DUY TRAN YIBO WANG ALEX GLAETZLE SHANNON WHITLOCK ANDREI SIDOROV AND PETER HANNAFORD Centre for Quantum and Optical Science Swinburne University of Technology Melbourne Victoria 3122 Australia bIPCMS UMR 7504 and ISIS UMR 7006 University of Strasbourg and CNRS 67000 Strasbourg France c Clarendon Laboratory University of Oxford Parks Road Oxford OX1 3PU United Kingdom Ĩ E-mail phannaford@ Received 8 March 2019 Accepted for publication 31 March 2019 Published 15 April 2019 Abstract. This article reviews the development in our laboratory of magnetic lattices comprising periodic arrays of magnetic microtraps created by patterned magnetic films to trap periodic arrays of ultracold atoms. Recent achievements include the realisation of multiple Bose-Einstein condensates in a 10 mm-period one-dimensional magnetic lattice the fabrication of sub-micron-period square and triangular magnetic lattice structures suitable for quantum tunnelling experiments the trapping of ultracold atoms in a sub-micron-period triangular magnetic lattice and a proposal to use long-range interacting Rydberg atoms to achieve spin-spin interactions between sites in a large-spacing magnetic lattice. Keywords magnetic lattices ultracold atoms degenerate quantum gases quantum spin models. Classification numbers . c. Based on a lecture presented by P Hannaford at the 10th International Conference on Photonics and Applications ICPA-10 held in Ha Long City Vietnam from 11-15 November 2018. 2019 Vietnam Academy of Science and Technology 98 MAGNETIC LATTICES FOR ULTRACOLD ATOMS I. INTRODUCTION Following the discovery in the mid-1980s of laser techniques to cool and trap clouds of atoms down to microkelvin temperatures 1-3 optical lattices - periodic arrays of optical dipole traps created by interfering laser beams - have become a standard