A Proposal for Realizing an Array of Bose-Einstein Condensates

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2002,（7）
• 页码范围: 937-940
• 页数: 4页
• 分类号: O4
• 语种: 英文

摘要

We propose one-dimensional (1D) and two-dimensional (2D) arrays of magnetic surface microtraps for coldalkali atoms using some arrays of current-carrying wires and we calculate the spatial distributions of magneticfields from the 1D and 2D arrays of current-carrying wires. The field gradients and curvatures from a singlemagnetic microtrap are analysed, and some interesting and periodic magnetic-well microstructures are found.The result shows that a magnetic-field gradient greater than 2.4 × 105 G/cm and a field curvature greater than4.05 × 108 G/cm2 can be generated in our array of magnetic microtraps, which can be used to realize the 1Dand 2D arrays of Bose-Einstein condensations (or 1D and 2D arrays of Bose clusters) by rf-induced evaporativecooling, and then to form 1D and 2D atomic magnetic lattices, even to prepare 1D and 2D photonic crystals.