量子态

时变介观LC电路量子态的演化

Evolution of quantum state for mesoscopic LC circuti

不管Bob拥有的粒子处于何种量子态上，本文首先进行一个唯一确定的幺正变换U1（我们称之为U变换）；

The unitary transformation we named U transformation is same for different quantum state belonging to Bob .

勿需测量坍缩假定的N能级量子态的隐形传递方案

Quantum Teleportation Scheme of N-level States Without the Collapse of Postulation

并首次详细地研究了此量子态的等阶N次方H压缩特性。

The properties of the equal-order N-th power H-squeezing in the state is studied firstly in detail .

利用Raman相互作用实现腔场和原子未知量子态的隐形传送

Study on Teleporting an Unknown Quantum State between Atom and Cavity-Field via Raman Interaction

研究了介观LC电路在外加电源作用下，系统量子态随时间的演化，分析了实现压缩态的动力学过程。

The evolution of quantum state with time in the time-dependent mesoscopic LC circuit containing source is studied in this paper .

之前由于有很多证明了Bell不等式是不正确的量子态大多数是离散变量的，因此我们在这里选用连续变量。

Since most of the research which demonstrate the Bell inequality was wrong use the dissociation variable quantum state . Here we use continuous variable quantum state to do our research .

外场驱动对Tavis-Cummings模型中量子态保真度的影响

Effect of external field on the fidelity of quantum states in the two-atom Tavis-Cummings model

多用户检测技术的最优解在常规条件下是一个NP难解问题，利用量子态的并行计算特性以及量子态检测等理论，量子多用户检测技术能够有效地获得多用户检测的最优解。

The optimal solution for the conventional multi-user detection is a NP hard problem . The quantum multi-user detection ( QMUD ) which based on quantum mechanics can solve this problem efficiently .

发现有效哈密顿算符与原哈密顿算符在形式上由一静态规范变换相关联。这两个哈密顿算符的量子态差Berry相位。

We found that the effective Hamiltonian and original one are formally related with a static gauge transformation , the quantum states of the two Hamiltonians differ by a Berry phase .

研究如何利用两粒子形成的EPR－Bel态传输光子的量子态，并提出依赖于两光子缠绕的密集编码实验设想。

We study how to teleport the quantum state of a photon using two particle EPR Bell states , and present experimental ideas of dense coding based on two photon entanglement .

研究了充满类克尔介质的高Q腔中二能级原子与单模相干光场发生双光子相互作用（双光子B-J模型）时，类克尔介质对该体系量子态保真度的影响。

Fidelity of quantum state in two photon B J model is investigated . It is shown that the Kerr like medium significantly influences the fidelity of quantum states .

借鉴量子态的叠加，纠缠和并行等特性，人们将进化计算（EvolutionaryComputation，EC）与量子计算相融合，出现了一种量子进化计算（Quantum-InspiredEvolutionaryComputation，QEA）。

Based on the properties , such as superposition , entanglement and parallel features , a new quantum-inspired evolutionary algorithm ( QEA ) was proposed by researchers , which integrated the advantages of evolutionary computation and quantum computation .

结果表明，在外加电源作用下，时变介观LC电路的量子态将由初始的真空态演化到压缩态。

The results indicate that under the action of external source , the system will evolve from the vacuum state to the squeezing state for time-dependent LC circuit containing source , but to the coherent state for time-independent LC circuit .

在任意三粒子量子态的隐形传送方案中，本文对接收者（Bob）所拥有的粒子进行联合幺正变换的方法和其他论文不同。

According to these messages , one can configure all information of the original quantum state at place B.In the scheme of teleporting an arbitrary three-particle entangled state , the collective unitary transformation performed by Bob is different from in others .

在量子态的调控方面，本论文提出了一个包含了Stark效应和邻近电子态影响的布居转移模型。

For the quantum state manipulation , a model for controlling the population trans-fer between the electronic states is discussed , and the effects of the Stark shift and neighboring electronic states on the population transfer are considered .

BEC是由Einstein在1924年提出的一个著名预测。它是指在某个临界低温下，宏观数量的原子将凝聚到动量为零的最低能量状态，形成宏观量子态。

In 1924 Einstein made a famous forecast that was : under some low temperature , a macro-number of atoms would condensate into the lowest energy state of zero momentum , then would form the macro-quantum state .

近年来，提出的利用电磁感应透明效应（EIT）将量子态光场存储在原子系综中的新方案，已发展成为目前量子信息科学的重要研究内容之一。

In recent years , a new scheme , which use of the electromagnetic induced transparency ( EIT ) medium to store the quantum states of light field , is one of the important researches in quantum information science .

即用BCS哈密顿计算了断点组态碎块的量子态密度，碎块的变形对量子态密度的贡献也被考虑了。

That is , the quantum state densities of the fragments at scission point are calculated by means of BCS hamiltonian . The contribution of the collective deformation of fragments to the quantum state density has been taken into consideration .

在这两个方案中，量子态的发送者的局域正定算符值测量（POVM）起着关键作用，并给出了该测量算符的数学表式。

In these schemes , the senders local generalized measurement described by a positive operator valued measurement ( POVM ) lies at the heart .

当前，尽管人们基于腔QED系统已成功制备了原子-原子纠缠、光子-原子纠缠等，但在多原子体系中，对每个原子和光子的量子态独立操控仍是当前实验技术的一个难点。

Up to now , the generation of atom-atom entanglement , photon-atom entanglement is realizable based on cavity QED . However , the individual control of single atoms in multi-atoms systems is still very difficult with current technologies .

计算和讨论表明：黑洞事件视界外部附近的高密度量子态与黑洞内部有强关联，brick-wall模型中的紫外截断是不合理的。

These calculation and discussion imply that the high density quantum states near the event horizon are strongly correlated with the quantum states in black hole and the ultraviolet cut-off in the brick-wall model is not reasonable .

QKD子板根据真随机数产生高精度的电平，控制系统中的光学器件调制光子，制备、传输并测量光子的量子态，生成原始的密钥，然后将密钥传送给母板。

The child board generates voltages of high precision to control the optical devices to modulate the photon pulses in order to produce , transmit and measure the quantum states , then raw keys will be got and transfered to the mother board .

因为QKD系统是对单量子态的操作，因此QKD系统本质上是量子力学系统。考察了电子-空穴的关联明显加强时及完全束缚发生时量子点的横向尺度。

In order to understand the quantum information processing in QKD system , complete quantum mechanics method was employed to describe QKD system . The QD 's lateral sizes are inspected when the electron-hole correlation becomes enhanced as well as the complete quantum confinement occured .

量子态和量子态组分布熵的预测规律及验证

Prediction of Distribution Entropy in Quantum State / Quantum State Groups

玻璃衬底上中温制备多晶硅薄膜的量子态现象

Quantum State of Poly-Si Films at Middle Temperature on Glass Substrate

夫琅和费圆孔衍射的量子态分析

The analysis of quantum states on the Fraunhofer circle aperture diffraction

我们研究了量子态的可分性和纠缠度量。

We investigate separability and measure of entanglement for quantum states .

多个控制者参与的量子态受控传递

Teleportation of an Unknown Quantum State Under the Control of Multi-User

光场量子态的信息熵和保真度

Information Entropy and Fidelity for Quantum States of Light Field