Ultracold fermions in a graphene-type optical lattice Kean Loon Lee (李健伦), Benot Grmaud, Rui Han (韩睿), Berthold-Georg Englert, and Christian Miniatura Phys. Rev. A 80, 043411 (Published October 19, 2009) Two highly active fields of physics have merged in recent years, ...
Universe's quantum 'speed bumps' no obstacle for light A hint that quantum fluctuations in the fabric of the universe slow the speed of light has not been borne out in observations by NASA's Fermi telescope. The measurements contradict a 2005 result that supported the idea that spac ...
小道消息: Accelerating neutral atoms (邱荣涛) The intensity gradients of inhomogeneous laser-light fields impose ponderomotive forces on charged particles. Such forces have been used to trap and manipulate ions, diffract electrons, and generate charge waves in plasmas. But they were tho ...
谁来讲十分钟: Nearly perfect fluidity Thomas Schfer Is there a fundamental lower bound on viscosity? To answer this question, we can look at the coldest and hottest fluids that laboratories are able to produce. From everyday experience, we have an intuitive feel for how a &ld ...
Reaching a new resolution standard with electron microscopy Robert F. Klie Nanoscale Physics Group, Department of Physics, University of Illinois at Chicago, Chicago, IL 60607, USA A new approach to reduce spherical and chromatic aberration in electron microscopy allows for lo ...
Spin Drag in Noncondensed Bose Gases Marco and Giovanni Vignale , Spin Drag in Noncondensed Bose Gases, Phys. Rev. Lett. 103 , 170401 (2009) 摘要: It is shown that show how time-dependent magnetic fields lead to spin motive forces and spin drag in a spinor Bose gas. The aut ...