高压中温准稳态绝热量热计

本量热计利用准稳态原理设计而成,主要用于测定含油地层岩样的真比热,测试范围0.1—9.0MPa、室温≈550K,绝热控制精度<±0.5％,标准样品纯铜和石英玻璃的测定值与TPRC的常压值偏差约±1％。仪器具有测试快速、换样方便、自动控温,结果直接打印和精度较高等优点。     

Implementing entanglement teleportation via adiabatic passage

This paper proposes a scheme for implementing teleportation of an entangled state of two trapped atoms through adiabatic passage and photonic interference. The scheme is robust against certain noise such as atomic spontaneous emission and the detector inefficiency.     

基于灰色GM(1.1)模型的预测研究——邯郸市城镇化水平预测

灰色GM(1.1)模型适合少量数据的系统预测.当随时间序列的数据只有少量几个,无法采用统计和其他的预测方法时,它作为一种少数据的系统预测十分有效.将1999-2003年5年中的邯郸的城镇化水平作为灰色预测的原始数据,建立邯郸市城镇化水平灰色预测模型,并采用残差估计进行模型检验.成功地建立了邯郸市城镇化水平灰色预测模型.     

Quantum State Transfer via Adiabatic Passage

我们采用周期极化KTP晶体为非线性介质，通过光学参量振荡器运转于阈值以下的简并参量振荡过程，产生了单模正交压缩真空态光场，在泵浦功率为123mW，Local光功率为842uW，晶体温度为32．1摄氏度时我们使用平衡零拍探测法测得输出场噪声功率低于散粒噪声基准3．41dB。     

Quantum state transfer via adiabatic passage

Based on adiabatic passage, we propose a scheme for implementing the quantum transfer of an unknown atomic state. In our scheme, we utilize photons for ideal quantum transmission between two cavities with the successful probability being about 1. Meanwhile, the scheme is robust against the effects of atomic spontaneous emission. It may be useful for transferring quantum information among spatially distant atoms.     

柔度方程在COD法测量疲劳裂纹长度中的应用

简介了COD技术测量裂纹长度的理论标定式.通过一套高精度的柔度测量系统,对GC4高强钢的两和热处理制度的CT试样进行了裂纹测量标定。调整柔度——裂纹表达式中的弹性模量E′,获得了高精度的实验柔度——裂纹(即BE′V/P-a/W)标定曲线.由实验观察提出了对BEV/P取对数的多项式标定函数,它此广为采用的以1/[(BEV/P)1/2+1]为项的多项式简单,无论是与理论计算值还是与实验值进行对比,前者均优于后者。     

Generation of Multiple-Photon GHZ State via Cavity-Assisted Interaction

We propose a scheme for preparing multiple-photon GHZ state via cavity-assisted interaction. There are n-pair single-photon pulses successively injected and reflected from two sides of the cavity, which traps one atom. After the atomic state is measured, a 2n-photon GHZ state is produced. In the ideal case, the successful probability of the scheme is close to unity.     

鉴别苯酚应注意的问题

苯酚的定性鉴别受到溶剂和溶液酸碱性的影响。通过对不同有机溶剂中鉴别苯酚的对比实验,讨论溶液酸碱度对苯酚鉴别实验的干扰,对苯酚鉴别实验提出改进意见。