搜索结果: 91-105 共查到“知识库 量子力学”相关记录1423条 . 查询时间(6.062 秒)
陆地量子移动通信最优纠缠多址中继方案
陆地量子移动通信 纠缠纯化 量子纠缠多址中继 量子隐形传态
2011/8/11
为了解决EPR纠缠通过大气空间在通信终端之间的分发问题,使量子移动用户之间及时建立纠缠,提出了一种新的陆地量子移动通信网络的量子纠缠多址中继方案和分区服务模型.分析比较了基于量子受控非门和极化分束器的两种纠缠纯化方法.结果表明:即使在量子移动终端之间没有共享EPR纠缠对的情况下,通过纠缠纯化和量子多址中继,仍然可以完成量子态的无线传输,并且其传输时延与所经过的链路距离和基站数目无关|因此,从数据传...
基于LabVIEW的连续变量相位检测系统
连续变量 零差检测 相位检测 LabVIEW
2011/8/11
构造了一种连续变量相位检测平台.发射端采用相位调制器产生连续的相移,接收端使用零差探测器测量光场的正则相位,选用NI的高性能数据采集卡PCI6111E控制整个系统.使用LabVIEW虚拟仪器模块化编程技术,包括PID控制、DAQmx数据采集和三角拟合,缩短系统开发时间,提高编程效率.通过琼斯矩阵理论推导和实验验证了连续变量相位检测系统的可行性,结果表明零差探测器输出电压与相位调制器输入电压成余弦关...
We propose a new criterion for judging zero quantum discord for arbitrary bipartite states. A bipartite quantum state has zero quantum discord if and only if all the blocks of its density matrix are n...
关于对称性理论中梅凤翔问题
对称性理论 梅凤翔 力学量
2013/10/12
提出在分析力学中应区分力学量的两种时间变化率,并结合力学系统不同对称性的特点,阐明Noether等式中出项(q..)不能用运动微分方程表示为t、q、q.的函数，而Mei对称性判据方程中出现的(q..)应当消去的缘由。
New ways to access the transverse spin content of the nucleon
New ways transverse spin content of the nucleon
2011/1/7
We first describe a new way to access the chiral odd transversity parton distribution
in the proton through the photoproduction of lepton pairs. The basic ingredient is the
interference of the usual...
The talk, based on [1], analyzes the consequences of the assumption that the effects of quantum coherence and the resulting angular ordering in QCD cascades are disrupted within the hot fireball creat...
The effect of triangular flow on di-hadron azimuthal correlations in relativistic heavy ion collisions
di-hadron azimuthal correlations relativistic heavy ion collisions
2011/1/5
Using the AMPT model for relativistic heavy ion collisions, we have studied the di-hadron azimuthal angular correlations triggered by emitted jets in Au+Au collisions at center of mass energy psNN = 2...
We follow and modify the Feshbach-Villars formalism by separating the Klein-Gordon equation
into two coupled time-dependent Schr¨odinger equations for particle and antiparticle wave function componen...
Energy release from hadron-quark phase transition in neutron stars and the axial $w$-mode of gravitational waves
Energy release hadron-quark phase transition axial $w$-mode of gravitational waves
2010/12/21
Describing the hyperonic and quark phases of neutron stars with an isospin- and momentum-
dependent effective interaction for the baryon octet and the MIT bag model, respectively, and using the Gibbs...
Effects of Momentum Conservation and Flow on Angular Correlations at RHIC
Effects of Momentum Conservation Flow on Angular Correlations RHIC
2011/1/7
Correlations of azimuthal angles observed at RHIC have gained great attention due to the prospect of identifying uctuations of parity-odd regions in the eld sector of QCD.
Minimal conditions for the existence of a Hawking-like flux
Hawking radiation horizons black holes surface gravity
2010/12/20
We investigate the minimal conditions that an asymptotically flat general relativistic spacetime must satisfy in order for a Hawking-like Planckian flux of particles to arrive at future null infinity....
Highly anisotropic hydrodynamics -- discussion of the model assumptions and forms of the initial conditions
Highly anisotropic hydrodynamics -- discussion model assumptions forms of the initial conditions
2011/1/7
The model assumptions of the recently formulated framework of highlyanisotropic and strongly-dissipative hydrodynamics (ADHYDRO) are analyzed.In particular, we study dependence of numerical results on...
Hydrodynamic Expansion of a Strongly Interacting Fermi-Fermi Mixture
Hydrodynamic Expansion Strongly Interacting Fermi-Fermi Mixture
2010/11/25
We report on the expansion of a Fermi-Fermi mixture of 6Li and 40K atoms under conditions of
strong interactions realized near the center of an interspecies Feshbach resonance. We observe two differe...
QCD under magnetic field: chiral magnetic effect at heavy ion collisions
chiral-magnetic e ect vector-current correlation charge separation
2011/1/10
In this talk, we report our recent studies for the chiral magnetic e ect, which signals the P- and CP-violations at heavy ion collisions. We compute the electric current and its correlations, induced ...
A commonly adopted relational account of time evolution in generally-covariant systems, and more specifically in quantum cosmology, is argued to be unsatisfactory, insofar as it describes evolution re...