加强素质教育 培养学生能力

随着科学技术的迅猛发展，教学改革的不断深入，素质教育已成为广大中专物理教师的重要课题．物理教师有责任吸引学生成为物理爱好者．要用最好的教学方法吸引学生，要用真挚感情去感染学生和影响学生，以激发他们的学习兴趣，成为学习的主人，使学生愉快地接受物理知识的...     

Direct Measurement of Squeezing in the Motion of Trapped Ions

We present a simple method that can be used to directly measure the squeezing of the quantum motional states of a trapped ion. Through the use of the interaction between the trapped ion and classical lasers, one can design a required coupling between the internal electronic and external vibrational degrees of freedom of the ion and can transfer information of the expectation value of a vibrational operator to the atomic internal populations. Thus measurement of squeezing on the quantum motional state can directly be realized. By adjusting the phases of the interacting lasers, one can measure the squeezing of both position and momentum quadratures.     

极端分析法在解物理题中的应用

物理习题教学中,教学方法上一般都比较注重对习题作较多的定性分析,以达到培养和提高学生分析和解决问题的实际能力．然而由于解题方法众多,繁简不一,而且同一方法在解决不同问题时,表现出的繁简难易程度不大一样．甚至个别习题根本无法获得正确的答案．再加上个人思...